Suppose that there was an enzyme that cuts bonds between deoxyribose and phosphate groups. what would this enzyme do to a dna molecule?
Answers
Each DNA strand's "backbone" would be cut by the enzyme that breaks links between deoxyribose and phosphate groups.
Restrictions enzymes are found in bacteria (and other prokaryotes). They locate specific DNA sequences known as restriction sites and cling to them. Each restriction enzyme only recognizes one or a small number of restriction sites. Once it finds its target sequence, a restriction enzyme will make a double-stranded cut in the DNA molecule. The cut often happens at or close to the limitation point in a tidy, consistent pattern. As an example of how a restriction enzyme recognizes and cuts at a DNA sequence, consider EcoRI, a typical restriction enzyme used in labs. EcoRI makes alterations here.
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Related Questions
Lactose isolation
1. What is the difference between saturated casein and casein hydrolysate, and why is casein hydrolysed?
2. Explain the difference that occurred for each test substance in the Ninhydrin test. The solutions used: glycine (2% w/v), hydrosylated casein, saturated casein and water solution made
Answers
Saturated casein is a form of casein that has not undergone hydrolysis, while casein hydrolysate is casein that has been broken down into smaller peptides. Casein is hydrolyzed to enhance its solubility and digestibility, making it more suitable for certain applications such as infant formulas and sports nutrition products.
In the process of hydrolysis, casein is treated with enzymes that break down the protein into smaller peptides. This enzymatic hydrolysis cleaves the peptide bonds, resulting in the release of individual amino acids or shorter peptide chains. The degree of hydrolysis can vary, ranging from partial hydrolysis to extensive hydrolysis, depending on the desired end product.
The main reason for hydrolyzing casein is to improve its functional properties. The hydrolyzed form has increased solubility, which means it can dissolve more readily in water or other solvents. This solubility improvement is particularly important for applications where a clear solution or a highly dispersible protein is required.
Furthermore, hydrolyzed casein is easier to digest compared to intact casein. The breakdown of casein into smaller peptides facilitates their absorption in the digestive system, allowing for quicker and more efficient utilization of the amino acids by the body.
Ninhydrin test is commonly used to detect the presence of amino acids and peptides. When the test substances, glycine (2% w/v), hydrolyzed casein, saturated casein, and water solution, are subjected to the Ninhydrin test, different reactions occur.
Glycine, being an amino acid, will react with Ninhydrin to produce a purple color, indicating the presence of the amino acid. Hydrolyzed casein, being a mixture of smaller peptides and amino acids, will also produce a positive reaction and turn purple. Saturated casein, on the other hand, will not produce a strong reaction since it consists of intact protein molecules with fewer free amino groups available for the Ninhydrin reaction. The water solution, which does not contain any amino acids or peptides, will not show any color change.
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In eukaryotic cells, transcription cannot begin until _____
A. sigma binds to the -10 and 35 boxes
B. several basal transcription factors have bound to the promoter
C. the 5' caps are removed from the mRNA
D. the DNA introns are removed from the template
E. DNA nucleases have isolated the transcription unit
Answers
B. several basal transcription factors have bound to the promoter.
In eukaryotic cells, transcription is the process of synthesizing mRNA from a DNA template. Before transcription can begin, several basal transcription factors must bind to the promoter region of the DNA. The promoter is a specific sequence of DNA located near the start of a gene that serves as a binding site for transcription factors. These transcription factors help recruit RNA polymerase, the enzyme responsible for synthesizing mRNA, to the promoter and initiate transcription.
Option A is incorrect because sigma factors are specific to prokaryotic cells and are not involved in transcription initiation in eukaryotes. Option C is incorrect because the removal of 5' caps from mRNA occurs during post-transcriptional processing, not before transcription begins. Option D is incorrect because the removal of DNA introns occurs during RNA processing after transcription, not before transcription initiation. Option E is incorrect because DNA nucleases do not isolate the transcription unit but instead are involved in DNA degradation and repair processes.
In eukaryotic cells, transcription is a complex process that involves the synthesis of messenger RNA (mRNA) from a DNA template. It is a key step in gene expression, where the genetic information encoded in the DNA is transcribed into RNA molecules that can then be translated into proteins.
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What causes the green house affect
Answers
Answer: Hope This Helps!
Explanation:
Greenhouse effect, a warming of Earth's surface and troposphere (the lowest layer of the atmosphere) caused by the presence of water vapour, carbon dioxide, methane, and certain other gases in the air. Of those gases, known as greenhouse gases, water vapour has the largest effect.
In rabbits, straight ears (E) are dominant to floppy ears (e), Two rabbits are crossed, and 50% of their offspring have floppy ears. Which cross represents the
genotypes of the parents?
EEXEE
EE x ee
Ee x EE
Ee x ee
Answers
Answer: Ee x ee
Explanation:
Answer:
The correct answer is Ee x ee :)
Explanation:
Carrots that are immersed in salt water for several hours become limp and soft. From this we can deduce that the cells of the carrots are
Answers
When carrots become limp and soft when immersed in salt water for several hours, it can be deduced that the cells of the carrot are hypotonic when compared to the salt water.
Hypotonic refers to the those cells or solutions that have more quantity of solvent and less quantity of solutes when compared to another cell or solution. The result of hypotonicity is that the cell or solution loses solvent in order to increase the solvent concentration in the other cell/solution.
Cell is the fundamental unit of living organisms. A cell consists of all the essential components required for its survival. Cells can be categorized into two forms: prokaryotic cell and eukaryotic cell. Eukaryotic cells further have two types: plant cell and animal cell.
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Strains of Lactobacilli are used to make cheese because they ferment. If a bacterium uses fermentation as its only source of metabolism, it will grow: a. at the same rate in either the absence or presence of oxygen. b. only under anaerobic conditions since fermentation is an anaerobic process. c. much faster if oxygen is available for aerobic respiration. d. best in the absence of oxygen because the bacterium is an anaerobe.
Answers
Bacteria that use fermentation as their sole source of metabolism will only grow under anaerobic conditions because fermentation is an anaerobic process. Option b.
Fermentation is an anaerobic process that does not require oxygen. When bacteria use fermentation as their only source of metabolism, they produce energy by breaking down organic compounds such as sugars in the absence of oxygen. This process generates ATP, which is used for cellular energy. If oxygen is present, the bacteria can also use aerobic respiration, which produces more ATP than fermentation. However, if the bacterium relies solely on fermentation, it will not be able to use oxygen to produce more ATP. Therefore, it will not grow faster in the presence of oxygen. In fact, if oxygen is present, the bacterium may even grow slower or not at all because oxygen can be toxic to some anaerobic bacteria.
In conclusion, bacteria that rely solely on fermentation as their only source of metabolism will grow only under anaerobic conditions. They will not grow faster if oxygen is available, and in fact, may even grow slower or not at all in the presence of oxygen.
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The work of Karl von Frisch revealed much information about communication among honeybees. He investigated the ability
of scout honeybees to inform workers in the hive of the direction and distance of a food source from the hive. Dances are
believed to be a part of this communication. Returning scout honeybees were observed performing dances on the surface of
the honeycomb.
The graph here shows the relationship between the distance from the hive of a food source and the number of turns per unit
time that the scout bees make while performing a "waggle dance
Which statement is an inference based on this experiment?
A)
Bees are responsible for cross-pollination of flowers.
B
Bees can communicate by color.
Bees respond to visual stimuli.
D)
Bees possess a nerve net
Answers
Answer: c
Explanation: just did the test
Answer:
Explanation:
C
What is the job of the cell membrane
Answers
Answer:
regulates the transport of materials entering and exiting the cell. In simpler terms, allows which materials can enter or exit the cell.
15.
Turn your attention to the pathways leading to the gray whales. What is
the maximum number of trophic levels you can find in any pathway
leading to the gray whales?
Answers
The pathway which starts from phytoplankton, crustacean Nauplii, crab larvae and ends with grey whale is the pathway which has maximum number of trophic levels.
What is trophic levels?The trophic level of an organism is the position that it occupies in a food web or in other words, the trophic level of an organism is the number of steps it is from the start of the chain.
In this graph, the pathway starts from phytoplankton which is eaten by crustacean Nauplii. This crustacean is again eaten by crab larvae and finally by the grey whale. This has maximum number of trophic levels as compared to other pathway.
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In a trophic web there are several trophic chains, each with varying number of levels. In the exposed example, the maximum number of trophic levels in the pathways leading to the gray whales is four.
Trophic web
When talking about the trophic web, we refer to the energy transference from one organism to the other.
These organisms place at different levels. Each level feeds on the anterior one and gets eaten by the next one.
The first link is composed of organisms that take radiation energy to produce organic compounds. These are autotroph organisms or producers.
The following links are the consumers:
Herbivores are primary consumers and feed on producers. Carnivores are secondary consumers that feed on herbivores.
Tertiary consumers feed on secondary consumers, and so on.
The last links are the decomposers, fungi, and microorganisms that act on dead animals degrading organic matter.
Any change that occurs at any of the links will immediately affect the other links too. It will cause an increase or decrease in their population sizes.
In the exposed image of a trophic web, we can identify three trophic chains,
1) From phytoplancton to euphasiids
From euphasiids to Gray whales
There are three levels:
Phytoplancton ⇒ producer, Euphasiids ⇒ primary consumer,Gray whales ⇒ secondary consumer.2) From phytoplancton to crustacean Nauplii
From crustacean Nauplii to Crab larvae
Fom Crab Larvae to Gray whales.
There are four levels:
Phytoplancton ⇒ producer, crustacean Nauplii ⇒ primary consumer,Crab larvae ⇒ secondary consumer,Gray whales ⇒ tertiary consumer.3) From phytoplancton to copepods
From copepods to Crab larvae
Fom Crab Larvae to Gray whales.
There are three levels:
Phytoplancton ⇒ producer, Copepods ⇒ primary consumer,Crab larvae ⇒ secondary consumer,Gray whales ⇒ tertiary consumer.The maximum number of trophic levels is four.
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Chromosomal mutations usually Occur during?
Answers
Answer:
The fundamental structure of a chromosome is subject to mutation, which will most likely occur during crossing over at meiosis.
Explanation:
Answer: B. Suddenly, as a result of a mistake in mitosis or meiosis.
Explanation: let me know if this helps!
A neuron receives a stimulus. which events happens next?
Answers
When a neuron receives a stimulus, several events occur in a sequential manner. The stimulus can be of various types, such as light, sound, touch, or chemicals. The neuron receives the stimulus through its dendrites, which are the branching extensions that receive signals from other neurons or external sources.
Once the stimulus reaches the dendrites, it causes a change in the membrane potential, which is the electrical charge difference between the inside and outside of the neuron. This change, known as depolarization, triggers the opening of ion channels on the cell membrane.
These ion channels allow positively charged ions such as sodium (Na+) and calcium (Ca2+) to enter the neuron, resulting in an influx of electrical current that propagates towards the axon hillock. This region of the neuron is responsible for integrating all the incoming signals and deciding whether to fire an action potential or not.
If the stimulus is strong enough to reach the threshold potential, which is around -55 mV, an action potential is generated. The action potential is a rapid and brief reversal of the membrane potential, which travels along the axon towards the synaptic terminals.
At the synaptic terminals, the action potential triggers the release of neurotransmitters, which are chemical messengers that cross the synaptic gap and bind to receptors on the target neuron or effector cell. This way, the stimulus is transmitted from one neuron to another or from a neuron to a muscle or gland cell, leading to a response or action.
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HELPThe Punnett square shows the possible genotypecombinations of two parents who are homozygous fora trait.WWW WWWwWWWWwWhat is the probability of the parents having a childthat is heterozygous for this trait?O 0%O 25%O 75%O 100%
Answers
As we can see in the punnet square we have a recessive homozygous and a dominant homozygous, in the possible combinations that can have the offspring, that is to say the letters inside square we can see that all are heterozygus, e
what is astraphobia...............
Answers
Answer:
Astraphobia, also known as brontophobia, is a kind of phobia characterized by an intense fear of extremely loud but natural noises in the environment. Namely, lightning and thunder.
Hug
Science
7. Fill in the blanks with the word from
the plant pot below
Plants can only grow
under certain
Answers
The question is incomplete the correct question is attached in the form of the image:
Answer:
Plants can only grow under certain conditions.1. condition. They need 2. Water, air, light, and warmth. If a 3. plant does not have these things will slowly die. A 4. healthy plant has green leaves and stands up strong. A plant that has been deprived of 5. light will lose its leaves. A plant that has been deprived of 6. nutrients will turn yellow, thin and, 7. spindly. To stay healthy a plant needs to take water and nutrients from the 8. soil. Plants take 9. carbon 10. dioxide from the air and use it with water and 11. light to make ts food.
Plants can only grow under certain conditions, which include:
waterairlightwarmthWhat are environmental conditions?Environmental conditions can be defined as different circumstances in which an organism can survive and reproduce.
Organisms are adapted to survive to different environmental conditions (e.g. temperature conditions).An organism that can live in a wide range of environmental conditions is a eurytopic organism.In conclusion, plants can only grow under certain conditions.
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Bronchi branch into _________________ These tubes end in bunches of
______________________________.
Answers
Bronchi branch into bronchioles, which branch into alveoli.
What are bronchi?
Your bronchi are the broad tubes that join to your trachea (windpipe) and send air to your left and right lungs, respectively. Your chest contains them. The word "bronchus" is pluralized as "bronchi." Your left lung receives air through your left bronchus. Your right lung receives air through your right bronchus. A crucial component of your respiratory system is your bronchi. Your bronchi distribute the air inside your lung as you breathe and your lungs expand.
Hence, Alveoli are created when bronchi branch into bronchioles.
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Which of the following best explains why what we know about cells is called a theory and not a law? (4 points) a We do not have enough evidence yet to call cell theory a law. b We have not reviewed cell behavior enough yet to call it a law. c Cell theory is still changing but may eventually become a law. d Cell theory explains cell behavior where a law would describe it.
Answers
Cell theory explains cell behavior where a law would describe it explains about cells is called a theory and not a law.
What do you mean by cell theory?Cell theory is a scientific theory first formulated in the mid-nineteenth century, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells.
Everything that lives is made up of cells. The second part of cell theory was that new cells are formed from preexisting cells. The third part is that all cells are similar. Finally, cells are the most basic units of life.
The cell theory, or cell doctrine, states that all organisms are composed of similar units of organization, called cells. The concept was formally articulated in 1839 by Schleiden & Schwann and has remained as the foundation of modern biology.
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HURRRY Which stage of the cell cycle results in two identical cells?
A. mitosis
B. cytokinesis
C. interphase
D.metaphase
Answers
Answer:
b. cytokinesis
Explanation:
Answer:
B. Cytokinesis
Explanation:
The person above me is correct ^-^
ONCE AGAIN CRAZZYYYYY!!!!!! WILL REWARD BRAILIEST! 50+ POINTS
2018E. coli is an example of a bacteria. Bacteria are classified as prokaryotic cells because their DNA is not contained in a membrane-bound nucleus. 5.Compare: Look at the Sand/silt sample under the microscope.A.Turn on Show labels. Does sand/silt have any internal structures?B.Do you think sand or silt is alive? Explain.
2018Activity B: Specialized cellsGet the Gizmo ready:On the LANDSCAPEtab, click on the woman’s head to choose the human neuron sample.Question: How do a cell’s specialized structures relate to its function?1.Collect data: Use the microscope to observe the samples listed in the table below. For each sample, estimate the cell size and check off the organelles that are present. If there is no column for an organelle, list it in the Special structure(s) column. SampleEstimatedsize (μm)NucleusCellmembraneCytoplasmSpecialstructure(s)Human neuronHuman skinHuman muscleHuman blood2.Observe: Select the human skin sample. On the MICROSCOPE tab, choose the 400x magnification, focus on the sample, and turn on Show labels. Click on the Nucleus label. If necessary, adjust the Stage sliders to see the full description.A.What is the function of the nucleus? B.What is the function of the cytoplasm? C.What is the function of the cell membrane? 3.Observe: Select the human neuron sample. Focus the cells at 400x. Turn on Show labels. A.Click on the axon label to read the description. What is its function?
2018B.What is the function of a dendrite? Neurons transmit messages in the form of electrical and chemical signals, through axons and dendrites, from one part of the body to another. (Activity B continued on next page)Activity B (continued from previous page)4.Compare: Select to the human muscle sample. Observe the sample at 400x. A.What do muscle cells have that other cell types do not? B.What is a striation and how does it help muscle cells function? 5.Compare: Select the human blood sample. Observe at 400x. Look under Show informationon the right-hand side of the Gizmo.A.What is the function of red blood cells? B.What is the function of white blood cells? C.What organelle is missing from the red blood cells? 6.Compare: Compare the human and animal samples (human and mouse skin; human and worm neurons; human and fly muscle; human and frog blood). A.In general, are there any major differences that you can see? Explain.
2018B.What organelle do frog RBCs have that human RBCs do not? Most mammalian red blood cells have no nucleus. This allows the red blood cell to use all of its volume to transport oxygen. 7.Extend your thinking: Many types of cells, such as the ones in this activity, live together in groups, called tissues. A tissue is a group of similar cells that together carry out a specific function. Describe how the skin cells, neurons, muscle cells, and blood cells you have observed relate to the functions of skin, nerve, muscle, and blood tissue.You can write your answer on another sheet of paper.
2018Activity C: Plants and unicellular lifeGet the Gizmo ready:On the LANDSCAPEtab, select the Microalgaesample.Introduction: Most of the animals and plants we are familiar with are multicellular, they are made up of many cells. However, many living things only consist of a single cell. These microscopic organisms are unicellular.Question: How are unicellular organisms similar to multicellular organisms?1.Observe: Compare the microalgae, the Elodea leaf cells, the maple leaf cells, and the root hair cells at 400x. Sketch each below: MicroalgaeElodea Maple leaf Root hairA.What structures do all of these cells have in common? B.What structures are missing from the root hair cells? C.What is the purpose of this structure, and why do you think it is missing from the root hair cells? Photosynthesis is the ability of some organisms to generate food from sunlight. Cells that are not exposed to sunlight will not take part in photosynthesis.D.How are the algae cells different from the other cells? Microalgae are examples of unicellular organisms. Each cell is a single organism.
20182.Explore: Which other samples in the Gizmo do you think represent unicellular organisms? (Activity C continued on next page)
2018Activity C (continued from previous page)3.Observe: Switch to the Protist sample. Protists are unicellular organisms common in ponds On the MICROSCOPE tab, select the 100x radio button and focus the image.A.Watch the motion of the protists at 100X and 400X. What structures allow each protist to move?Amoeba: Euglena: Paramecium: B.In the table below, draw the structures that allow the protists to move on their imageson the left and describe the structures in the spaces on the right:AmoebaEuglenaParameciumC.Which protist is photosynthetic? How do you know?4.
Answers
Answer:
this question is not 50 points just sayin
Explanation:
Create a ranking system for the terms from one to six. The first one has been completed for you. Rank the remaining terms as two through six.
1) letter
chapter
word
page
book
sentence
Answers
Answer:
2 - word
3 - sentence
4- page
5 - chapter
6 - book
What is the fate of melanin above the stratum basale in dark-skinned people?
a It becomes lighter.
b It is digested by lysosomes.
c It mingles with keratohyalin granules.
d It occupies keratinocytes throughout the epidermis.
e None of the listed responses is true.
Answers
The fate of melanin above the stratum basale in dark-skinned people is that it occupies keratinocytes throughout the epidermis (Option D).
Melаnin is а broаd term for а group of nаturаl pigments found in most orgаnisms. The melаnin pigments аre produced in а speciаlized group of cells known аs melаnocytes. There аre five bаsic types of melаnin: eumelаnin, pheomelаnin, neuromelаnin, аllomelаnin аnd pyomelаnin.
Melanin produced by melanocytes in the stratum basale is transferred to keratinocytes and then distributed throughout the epidermis to protect the skin from UV damage. In dark-skinned people, the melanin is produced in larger quantities and is spread throughout more layers of the epidermis, resulting in darker skin.
Thus, the correct option is D.
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What are Supplementary and complementary genes, explain with example.
Answers
Supplementary and complementary genes are two concepts related to gene interactions and inheritance patterns.
1. Supplementary Genes:Supplementary genes refer to a pair of genes that are located on different chromosomes and work together to produce a specific trait. Each gene in the pair independently contributes to the expression of the trait, and the presence of both genes is required for the full expression of the trait. When either one or both of the genes are absent, the trait will not be fully expressed.
An example of supplementary genes can be seen in the flower color of sweet peas. Let's say there are two genes involved: Gene A and Gene B. Gene A controls the production of pigment for blue flowers, and Gene B controls the production of pigment for red flowers. Only when both Gene A and Gene B are present in the plant, the flowers will show a full expression of color, resulting in purple flowers. If either Gene A or Gene B is absent, the flowers will be either blue or red, respectively.
2. Complementary Genes:Complementary genes refer to a pair of genes that are located on the same chromosome and work together to produce a specific trait. However, unlike supplementary genes, the presence of both genes is not necessary for the trait to be expressed. Each gene in the pair independently contributes to the expression of the trait, but if both genes are present, they complement each other, resulting in an enhanced or more pronounced expression of the trait.
An example of complementary genes can be seen in the coat color of some animals, such as Labrador Retrievers. Let's say there are two genes involved: Gene C and Gene D. Gene C controls the production of pigment for black coat color, and Gene D controls the production of pigment for brown coat color. If an individual carries two copies of Gene C, it will have a black coat. If an individual carries two copies of Gene D, it will have a brown coat. However, if the individual carries one copy of each gene (Gene C and Gene D), the genes complement each other, resulting in a unique coat color known as "chocolate," which is a more pronounced expression compared to having just one gene.
In summary, supplementary genes require the presence of both genes for full expression of the trait, while complementary genes enhance or modify the expression of the trait when both genes are present.
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Write a short paragraph that explains the central idea of the article. Use at least two details from the article to support your response.
Dozens of earthquakes hit Hawaii as the world's largest volcano erupts
On November 27, Mauna Loa erupted for the first time in nearly 40 years. Located in Hawaii, Mauna Loa is the world's largest active volcano. Volcanoes are openings or vents where lava, small rocks, and steam erupt onto the Earth's surface. Melted rock that comes up from inside the Earth and out of a volcano is lava. The Mauna Loa eruption occurred at the Moku'āweoweo summit caldera. This is a large sunken basin at the summit — or highest point — of the volcano.
Following the eruption, dozens of earthquakes swarmed the region — one of them a magnitude 4.2 quake. Magnitude is a number that characterizes the relative size of an earthquake from 1 to 9.
Remain Vigilant
Officials issued an ashfall advisory for Hawaii's Big Island and asked residents to remain vigilant. So far the eruption's lava flows pose no risk to people living downhill from the eruption, according to Hawaii's Tourism Agency.
Map showing lava flow of Mauna Loa from the years 1843 to 1984.
Image 1. The volcano's last eruption was in 1984, when it sent a lava flow close to the city of Hilo.
"At this time, lava flows are contained within the summit area and are not threatening downslope communities," said officials from the U.S. Geological Survey (USGS). The USGS is a government agency that collects information to help monitor natural hazards such as earthquakes. They warned, however, that the location and advance of lava flows can change rapidly.
The USGS's Hawaiian Volcano Observatory noted that it is set to perform flights to assess the eruption. They warned that "winds may carry volcanic gas and possibly fine ash and Pele's hair downwind." Pele's hair are thin strands of volcanic glass formed from cooling lava. The glass is sometimes carried into the air by strong winds and is sharp enough to tear skin and eyes.
Monitoring The Volcano
Mauna Loa takes up more than half of Hawaii's Big Island. It rises 13,679 feet (4,169 meters) above the Pacific Ocean, according to the USGS. The volcano is fairly active, having erupted 33 times since its first well-documented eruption in 1843. Its last eruption was in 1984 when it sent a lava flow close to the city of Hilo. After that, Mauna Loa entered its longest dormant period in recorded history. Periods of time when the volcano is not erupting, but could in the future, are volcanic dormant periods.
Scientists tracked an uptick in earthquake frequency beginning in June with five to 10 earthquakes a day. By September, the warning signs of an eruption increased. The number of earthquakes grew to around 40 a day in October.
Answers
The central idea that the text has is that it tells us of the fact that the scientists were talking about the eruption as a way of sending out warning to the people.
The parts that agree with this are: By September, the warning signs of an eruption increased. Officials issued an ashfall advisory for Hawaii's Big Island and asked residents to remain vigilant
What is the central idea of a passage?The most significant thought that the author wishes to convey to the reader is the key theme of a passage or story. It is possible to state the main notion immediately. The main idea is stated by the author.
The key thought or concept that the author wishes to convey to the readers about the subject is the main idea of a paragraph.
The main premise of the text is that it informs us of the fact that experts were discussing the eruption as a means of alerting the public.
The following passages support this: By September, there were more eruption warning indicators.
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During which the phase of the cell cycle does cell division occur
Answers
Answer:
interphase I think
Explanation:
I hope I helped ;)
a) Compare and contrast the observed features of Buchan and Barrovian metamorphism in the Caledonian Orogen in Scotland and Ireland (and, optionally, other places). b) Briefly outline what processes control the distribution and evolution of heat and pressure in the Earth. c) Show how those processes explain the similarities and differences between Buchan and Barrovian metamorphism.
Answers
a) Buchan metamorphism: high-temperature, low-pressure; Barrovian metamorphism: low-temperature, high-pressure; occur in Caledonian Orogen.
b) Heat generated by radioactivity and planetary accretion; transported by conduction, convection, and advection; pressure influenced by rock weight and tectonic forces.
c) Buchan metamorphism from contact with hot magmas; Barrovian metamorphism from high pressures due to tectonic forces at deeper crustal levels.
a) Buchan metamorphism is characterized by high-temperature, low-pressure conditions, while Barrovian metamorphism involves low-temperature, high-pressure conditions. Both occur in the Caledonian Orogen in Scotland and Ireland, with Buchan showing contact metamorphism and Barrovian exhibiting distinct metamorphic zones.
b) Heat in the Earth is generated by radioactive decay and planetary accretion, and is transported through conduction, convection, and advection. Pressure is influenced by the weight of overlying rocks and tectonic forces.
c) Buchan metamorphism is caused by contact with hot magmas at shallow crustal levels, while Barrovian metamorphism is a result of high pressures at deeper crustal levels due to tectonic forces. These processes explain the differences in temperature and pressure gradients and the observed features of Buchan and Barrovian metamorphism.
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what happens during interphase?
Answers
Answer:
During interphase, the cell grows and the nuclear DNA is duplicated. Interphase is followed by the mitotic phase.
During interphase the cell grows and the nuclear DNA is duplicated. Interphase is followed by the mitotic phase, the duplicated chromosomes are segregated and distributed into daughter nuclei. The cytoplasm is usually divided as well resulting in two daughter cells
What role does fossil fuels play in the carbon cycle? *
They are a sink of carbon. The carbon in fossil fuels hasn't been in the carbon cycle in
millions of years.
They absorb carbon dioxide from the atmosphere with their buffering ability
The fossil fuels are getting more acidic because they are absorbing too much carbon
dioxide
Fossil fuels are not involved in the carbon cycle. They are involved in nutrient cycling.
Answers
Answer:
A
Explanation:
Carbon moves from fossil fuels to the atmosphere when fuels are burned. When humans burn fossil fuels to power factories, power plants, cars and trucks, most of the carbon quickly enters the atmosphere as carbon dioxide gas. Each year, five and a half billion tons of carbon is released by burning fossil fuels.
Which term matches this definition?
rigid, permeable structure that protects the cell,
helps the cell maintain shape, and prevents the
cell from bursting
A. cell wall
B. cocci
C. cell membrane
D. eukaryote
Answers
It provides structural support and protection. Pores in the cell wall allow water and nutrients to move into and out of the cell. The cell wall also prevents the plant cell from bursting when water enters the cell.
Which of these can be decomposed by a chemical change?
Answers
Answer:
B) CO
Explanation:
Chemical decompsition or breakdown is defined as the process in which a substance can be broken down into simpler compounds through chemical means.
CO or carbon monoxide can be decomposed by chemical change because it can be broken down into into carbon and oxygen.
While Co (cobalt), Cr (chromium), and Cu (coppoer) are present in its simplest form and can not be decomposed further.
Hence, the correct answer is "B) CO".
Which statement correctly describes why earthquakes happen?(1 point)
Earth’s crust suddenly slips along a fault.
Earth’s crust suddenly slips along a fault.
Earth’s crust near magma melts, and the ground collapses.
Earth’s crust near magma melts, and the ground collapses.
Earth’s crust switches places in a periodic manner.
Earth’s crust switches places in a periodic manner.
Earth’s crust undergoes a cycle from a solid material to magma.
Answers
Answer:
The third one
Explanation:
when it swutched it causes friction which causes earthquakes
As an airplane rises through the atmosphere, machines cause the pressure inside the cabin to decrease. Why is this change in pressure necessary?
Answers
Answer:
I think D or B i hope this helps!
Explanation:
Answer: Air pressure inside the plane should match the air pressure outside the plane.
The plane needs to stay balanced.
Got it right on the test.