What connects the
nitrogenous bases to each
other?
A. oxygen bonds
B. hydrogen bonds
C. sugar bonds
D. phosphate bonds
Answers
Related Questions
Cells that do not contain a nucleus are known as what?
Answers
Answer:
prokaryotes
Explanation:
What is meant when we say salmon are considered anadromous
Answers
Anadromous fish are species of fish that migrate from the ocean to freshwater streams and rivers to spawn. Salmon are an example of an anadromous species, as they migrate from the ocean to freshwater streams to lay their eggs.
please help i’ll give the brainliest if you give a correct answer tysm
Answers
Answer:
C. how close earth is to the sun
Answer:
C
Explanation:
word equation for photosynthess
Answers
Answer:
6CO2 + 6H2O → C6H12O6 + 6O2.
Explanation:
The process of photosynthesis is commonly written as: 6CO2 + 6H2O → C6H12O6 + 6O2. This means that the reactants, six carbon dioxide molecules and six water molecules, are converted by light energy captured by chlorophyll (implied by the arrow) into a sugar molecule and six oxygen molecules, the products.
the first major epidemiologic study of a chronic disease was the
Answers
The first major epidemiologic study of a chronic disease is known as the Framingham Heart Study. It aimed to identify the common factors that contribute to cardiovascular disease (CVD) and has made significant contributions to our understanding of CVD risk factors.
The first major epidemiologic study of a chronic disease is known as the Framingham Heart Study. It was initiated in 1948 in Framingham, Massachusetts, USA. The study aimed to identify the common factors that contribute to cardiovascular disease (CVD) by following a large group of participants over an extended period of time.
The Framingham Heart Study has made significant contributions to our understanding of CVD risk factors. It has helped identify high blood pressure, high cholesterol levels, smoking, obesity, and diabetes as major risk factors for CVD. The study has also played a crucial role in the development of preventive measures and treatment strategies for CVD.
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The first major epidemiologic study of chronic disease was the Framingham Heart Study.
Epidemiology is the study of how frequently diseases occur in various groups of people and why. Epidemiology also examines various factors that influence the occurrence of diseases such as genetic, behavioral, and environmental factors.
Furthermore, epidemiology is utilized to determine which populations are at high risk for a particular disease, to determine trends in the incidence of a disease over time, and to evaluate the effectiveness of preventive and therapeutic measures.
The Framingham Heart Study is a long-term epidemiologic research study conducted by the National Heart, Lung, and Blood Institute and Boston University.
In 1948, the study began by following the cardiovascular health of approximately 5,209 adult residents of Framingham, Massachusetts.
The study was an important breakthrough in health science research since it was the first major epidemiological study of chronic disease (heart disease) in the United States. The study's main goal was to recognize the incidence and risk factors for heart disease and stroke.
The Framingham Heart Study was a highly ambitious epidemiological study that provided a wealth of data about heart disease and its risk factors. The study's findings were used to develop national guidelines and public health strategies aimed at reducing the incidence of heart disease.
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SOMEONE HELP!!!!!!!test due in 30 min i need help answer as many as you can and put the number next to the one you answer !!!!!!!PLEASE!!!!!!!!!
Which of the following items have the WEAKEST gravitational force?
(3 Points)
A pencil and a book that are 10 cm apart
A pencil and a book that are 20 cm apart
A bowling ball and a book that are 10 cm apart
A bowling ball and a book that are 20 cm apart
2 In this system which way does the electricity flow?
(5 Points)
From the battery to the light bulb.
From the negative end of the battery to the positive end of the battery.
From the lightbulb to the battery.
From the positive end of the battery to the negative end of the battery.
319. An electric current produces a(an)
(4 Points)
magnetic field.
conductor.
solenoid.
insulator.
4You make your bed with the warm sheets you just pulled out of the dryer. Once you turn your light off and get into bed you notice tiny sparks in your sheets when climbing into bed. What could be causing this?
(4 Points)
When your sheets were in the dryer, they became charged with static electricity due to friction and now they are discharging causing the sparks.
The sheets are giving off electrons because you are positively charged.
When your sheets were in the dryer they became neutrally charged due to conduction.
D. The sheets got very warm in the dryer and now are sparking due to the heat they conducted.
5Which sets of magnets(s) below are attracted to each other?
(4 Points)
Y and Z
Only Y
X and Z
Only Z
6A temporary magnet _______________________
(4 Points)
keeps its magnetism for a long time.
easily loses its magnetism.
cannot be destroyed.
has two north poles.
7The diagram shows the magnetic field lines between two magnetic poles, A and B. Which statement correctly describes the polarity of magnetic poles A and B?
(5 Points)
A is a north and B is a south pole
A is a south pole and B is a north pole
Both A and B are north poles
Both A and B are south poles
8Which pair of magnets is arranged so that opposite poles are placed near each other?
(3 Points)
only B
only C
both B & C
You cannot tell from the picture.
9Which of the following are examples of static electricity?
(2 Points)
Lightning
Laundry sticking together coming out of the dryer
Shocking your finger on the doorknob
All of these
10Which of the following descriptions describe objects that are good conductors of heat and electricity?
I. metallic
II. allows heat and electricity to flow easily through it
III. repels a magnet
IV. does NOT allow electricity to flow through
V. particles are evenly distributed through the object
VI. restricts the flow of heat and electricity
VII. particles are unevenly distributed
(4 Points)
III, IV, VI, & VII
I, II, & V
none of these describe conductors
I, II, V, & VII
11A generator transforms __________________________________
(4 Points)
potential energy into kinetic energy.
magnetic energy into electrical energy.
mechanical energy into electrical energy.
friction into electrical energy.
12Which of the following descriptions are benefits of using an electromagnet instead of a permanent magnet are:
I. their strength can vary
II. they can be turned on and off
III. they work on metallic and non metallic objects
(5 Points)
I only
II only
III only
I & II
I & III
all of them
Answers
Answer:
Explanation:
Wth is this?
What path will an incoming stimulus follow?
a. Spinal cord to sensory neuron to brain
b. Brain to sensory neuron to spinal cord
c. Sensory neuron to spinal cord to brain
Answers
Answer: C
Explanation:
The sensory neurons picks up impulses and passes them via the spinal cord through the relay and motor neurons and finally to the brain.
Can someone help pleasee!!!
Answers
Answer:
Its probably a pine tree. with the characteristics
Explanation:
Which level of taxonomy is the largest and most inclusive? Group of answer choices phylum Domain species order
Answers
Answer:
Domain
Explanation:
The order of classification is like this (from biggest to smallest):
Domain -> Kingdom -> Phylum -> Class -> Order -> Family -> Genus -> Species
Hope this helped!
1. What forces cool moist air from the oceans to rise as it moves towards land? *
(1 Point)
O
Prevailing winds
Mountain ranges
Seasonal winds
Answers
Answer:
Seasonal Winds
Explanation:
as the air warms it causes the sea levels to rise and as air cools it moves land towards the sea
pipets are used to measure and dispense small amounts of liquids. you should draw the liquid into the pipet using your mouth. true/false
Answers
Pipettes are used to measure and dispense small amounts of liquids. You should draw the liquid into the pipette using your mouth. The given statement is true.
A pipette is a laboratory tool used to transport a predetermined amount of liquid, often as a media dispenser, in chemistry, biology, and medicine.
Pipettes are typically used to move small amounts of fluid or to measure and dispense liquid in milliliters. Micropipettes are more precise and subscriber when trying to measure less than 1 mL.
Pipets are instruments that measure and distribute small amounts of liquid. Using your mouth, draw the liquid into the pipette.
Even if the facilitator is not present, laboratory work can begin immediately after entering the laboratory. Never detach chemicals or other laboratory equipment.
Thus, the given statement is true.
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Housing rats in a complex social environment with much stimulation leads to some changes in brain structure, including __________:
a) increased cortical mass.
b) all of the given answers
c) increased dendritic branching of cortical neurons.
d) prolonged neural health, well into senescence.
Answers
Housing rats in a complex social environment with much stimulation leads to some changes in brain structure, including b) all of the given answers.
Housing rats in a complex social environment with much stimulation can result in various changes in brain structure. These changes include increased cortical mass, increased dendritic branching of cortical neurons, and prolonged neural health, well into senescence. The complex social environment provides opportunities for social interactions, cognitive stimulation, and physical activity, which can lead to enhanced brain development and plasticity. Increased cortical mass suggests structural adaptations in the brain, potentially indicating improved cognitive abilities. The increased dendritic branching of cortical neurons signifies increased synaptic connections and neural complexity, which can enhance information processing and learning. Prolonged neural health into senescence suggests that the enriched environment may have a protective effect against age-related cognitive decline. Overall, a complex social environment with stimulation has a positive impact on brain structure in rats.
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PLS ANSWER MY QUESTION (I WILL MARK THE BRAINLIEST IF ANSWERED CORRECTLY)
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Answer: The graph has neither a positive nor negative trend, which means the chart has no trend. Throughout the years the rainfall measured has made some significant changes, for example at the beginning of 1960 the rainfall measured at less than 80 mm. Then (looks like about) 2 years later the rainfall measures at more than 100 mm.
I hope this answer helps!
why are species going extinct before we know they exist?
Answers
If we could represent what is going on inside a plant using a simulation:
What inputs and outputs of the plant system would we want to represent?
What structures of the plant would we want to represent?
Answers
Answer:
dogfhlcblclhhchofhoskpkspkdojldnldbdkvdjvjzbksbkbmd kx
Chooe two different type of cell and explain how they are adapted for tbe job they do in your body
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Red blood cells and epidermic cells are examples of specialised cells. Through cell differentiation, these mature cell types are created.
What is cell differentiation ?Cell differentiation is the difference in gene expression that results in the creation of various cell types that are specialised to carry out particular tasks.
For instance, hematopoietic stem cells express the haemoglobin gene to produce red blood cells with certain functions, including the ability to carry oxygen to all of the body's cells.Additionally, epidermic cells are tailored to offer protection and mechanical strength.Red blood cells and epidermic cells are two examples of specialised cells. Through cell differentiation, these mature cell types are created.Learn more about Cell differentiation here:
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Why do some species self clone when in captivity?
Answers
Self-cloning, or parthenogenesis, is a reproductive strategy in which an individual can produce offspring without the need for fertilization by a male.
Why do some species self clone when in captivity?In captivity, some species may experience changes in their environment that can trigger self-cloning as a response to stress or lack of mating opportunities.
This is more likely to occur in species that have the ability to switch between sexual and asexual reproduction depending on environmental conditions.
Self-cloning can also be a result of genetic mutations or abnormalities that prevent normal sexual reproduction from occurring. In some cases, individuals that are unable to mate successfully may resort to self-cloning as a means of ensuring their genetic lineage continues.
Additionally, some species are naturally capable of parthenogenesis, and this ability may become more prevalent in captive populations due to a lack of genetic diversity and mating opportunities.
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2. Reproduction is the function of both______
and organisms.
Answers
Reproduction is the function of both living plants and organisms.
What is reproduction?Reproduction can be defined as a biological process through which all living organisms (parents) produce their offspring, especially through mating.
The types of reproductionBasically, there are two (2) main types of reproduction and these include;
Ase-xual reproductionSe-xual reproductionGenerally, reproduction is one of the main characteristics of a living organism and plants.
In conclusion, reproduction is a function that is peculiar to both living plants and organisms.
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Stevenson’s Skin Saver cosmetic company went bankrupt. Her head chemist, Jaqua, buried 75 barrels of super toxic glurch on the property before they abandoned it. Which law will help enforce that they clean up their mess?
a. Lacy act
b. Kyoto Protocol
c. SMCRA
d. Superfund Act
Answers
Does photosynthesis transfer electrons between enzymes?
Answers
Yes, Photosynthesis does transfer electrons between enzymes.
During the light-dependent reactions of photosynthesis, electrons are transferred between photosystems in the thylakoid membrane of the chloroplast. This electron transfer generates a proton gradient, which is then used to produce ATP via chemiosmosis. The electrons are eventually used to reduce NADP+ to NADPH. In the Calvin cycle, NADPH and ATP are used to fix CO2 and produce sugars. Therefore, photosynthesis involves the transfer of electrons between enzymes in order to generate energy and reduce carbon dioxide.
A photosystem is a pigment and protein complex that is involved in photosynthesis. Photosynthesis is the conversion of light energy into chemical energy, which is subsequently utilised to fuel numerous cellular activities in plants, algae, and certain bacteria.
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why do we need to analyze the samples resulting from the rt-pcr from embryonic stem cells and fibroblast cells as well?
Answers
Analyzing samples resulting from RT-PCR from embryonic stem cells and fibroblast cells is necessary to compare the gene expression profiles of these two cell types.
Embryonic stem cells are pluripotent, while fibroblast cells are differentiated and have limited potential for differentiation. Comparing the gene expression patterns of these two cell types can help to identify genes that are involved in pluripotency and differentiation. Additionally, the comparison can help to identify genes that are specific to each cell type and may be involved in their unique functions.
Overall, analyzing samples from both embryonic stem cells and fibroblast cells can provide valuable insights into the molecular mechanisms of cellular differentiation and development.
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A temperate grassland biome has a gross primary productivity of 3, 480 kilocalories/meter?/year and a net primary productivity of 2, 000 kilocalories/meter? / year. Which of the following is the approximate number of kilocalories/ meter? /year available to herbivores in that biome?
200
1480
2000
5480
Answers
Answer:
200 kilocal/meters^2/year
Explanation:
200kilocalories/meter²/year is the approximate number of kilocalories/ meter² /year available to herbivores in that biome. Thus option A is correct.
What is biome?A biome is a community of animals and plants that naturally occur in a certain region and have common traits. It is a significant life zone that comprises living species that have a common adaption to that environment.
A temperate grassland biome has a gross primary productivity of 3, 480 kilocalories/meter²/year and a net primary productivity of 2, 000 kilocalories/meter² / year. 200kilocalories/meter²/year is the approximate number of kilocalories/ meter² /year available to herbivores in that biome.
Therefore, the correct option is option A.
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If two plant species with different numbers of chromosomes interbreed: Group of answer choices the hybrid offspring will be unable to reproduce sexually at first the offspring will be capable of breeding with one of the parental species but not the other the hybrid offspring will immediately be a new species none of the above
Answers
If two plant species with different numbers of chromosomes interbreed, the outcome for the hybrid offspring will depend on the compatibility of their chromosomes.
One possible outcome is that the hybrid offspring will be unable to reproduce sexually at first. This can occur if the chromosomes from the different parental species are not able to pair up and separate properly during meiosis, which is the process of cell division that leads to the production of gametes (reproductive cells). Without proper chromosome pairing and separation, the hybrid offspring may not be able to produce viable gametes, making sexual reproduction difficult or impossible.
Another possibility is that the hybrid offspring will be capable of breeding with one of the parental species but not the other. This can happen if the chromosomes from one parental species are more compatible with the hybrid offspring than the chromosomes from the other parental species. In this case, the hybrid offspring may be able to produce viable gametes with one parental species but not with the other, leading to limited reproductive compatibility.
It is also possible that the hybrid offspring will immediately be a new species. This can occur if the combination of chromosomes from the two parental species results in a hybrid with a distinct set of characteristics and traits. If the hybrid offspring can successfully reproduce and establish a stable population, it may eventually be considered a new species.
Therefore, the correct answer is "none of the above," as the outcome will depend on the specific genetic interactions between the two plant species. The result could be any of the mentioned possibilities or something else entirely.
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What are the three differences between sugars in DNA and RNA?
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which of the following are examples of reflexes regulated by the autonomic nervous system (ans) ? 0.5 points voluntary movements flexing arm muscles heart rate motility of digestive system reflex arc of patella pupils
Answers
Among the given options, the examples of reflexes regulated by the autonomic nervous system (ANS) are heart rate, motility of the digestive system, and pupils.
The autonomic nervous system is responsible for controlling involuntary functions in the body. The regulation of heart rate, which adjusts according to the body's needs, is controlled by the ANS.
The motility of the digestive system, including the contraction and relaxation of smooth muscles in the gastrointestinal tract, is also under ANS control. Lastly, the dilation and constriction of pupils, in response to changes in light intensity or focusing on near or distant objects, are reflexes regulated by the autonomic nervous system.
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Complete Question:
Which of the following are examples of reflexes regulated by the autonomic nervous system (ANS)?
Select all that apply: 0.5 points
Voluntary movementsFlexing arm musclesHeart rateMotility of digestive systemReflex arc of patellaPupilsdescribe the nucleus. What can be found inside the nucleus?
Answers
The cell nucleus may be a membrane-bound organelle found in eukaryotic cells. The key work of the nucleus is to control cell development and duplication.
The DNA of a cell is found inside the cell's nucleus.
The cell nucleus could be a membrane-bound organelle found in eukaryotic cells. Eukaryotic cells usually have a single core, but many cell sorts, such as mammalian ruddy blood cells, have no cores, and several others including osteoclasts have numerous.
The most structures making up the core are the atomic envelope, a twofold film that encases the whole organelle and confines its substance from the cellular cytoplasm; much just like the cytoskeleton bolsters the cell as an entirety.
The DNA of a cell is found inside the core. It is sorted out into units known as chromosomes, each containing a long DNA atom that is related to different proteins.
The key work of the nucleus is to control cell development and increase.
This includes directing quality expression, starting cellular generation, and putting away hereditary fabric vital for all of these errands. In arrange for a core to carry out vital regenerative parts and other cell exercises, it needs proteins and ribosomes.
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Describe an enzyme and its functions in the cell.
Answers
Answer:
Enzyme is biological molecule (typically protein) that significantly speed up the rate of virtually all of the chemical reactions that take place within cells. The functions of enzyme is aiding digestion and metabolism
Explanation:
Which mRNA sequence complements the DNA sequence below?
The right half of a D N A molecule
Four m R N A molecules
A. Sequence A
B. Sequence B
C. Sequence C
D. Sequence D
Answers
Answer:
sequence c
Explanation:
i just took the biology learning gizmo five questions
Transcription is the process of mRNA synthesis. It occurs in the nucleus before translation. During transcription, RNA bases pair DNA bases, replacing Thymine with Uracyl. You will find the example in the explanation.
Note: The DNA sequence is missing, so I will provide a new sequence and explain the procedure. I suggest you perform the same steps with your molecule fragment and reach the correct mRNA.
Protein synthesisProteins synthesis is done in two stages: transcription and translation. The whole process begins in the nucleus and finishes in the cytoplasm.Protein synthesis initiates in the AUG start codon -Metionin-, and ends when reaching either of the stop codons UAA, UAG, UGA. Once the new molecule is completed, it is sent to its final destiny.Transcription:The first step before protein arrangement is to synthesize messenger RNA, mRNA. This is the transcription process and occurs in the nucleus. When the DNI molecule separates into two strands to form the transcription bubble, we can identify two separate segments: coding strand and template strand. The coding strand goes in direction 5' to 3', while the complementary strand -template strand- grows in direction 3' to 5'. This last segment is the one that is going to be complemented by the mRNA. It is the template strand. A template DNI strand is read in direction 3'→ 5' to build the mRNA molecule that grows in direction 5'→ 3'.During transcription bases forms pairs. RNA replaces Thymine with Uracyl, so pairs are as follows,DNA mRNA
Adenine pairs Uracyl, Thymine pairs Adenine, Guanine pair Cytosine, Cytosine pair Guanine.Translation:
Translation occurs in the cytoplasm. During translation, rRNA reads mRNA in 5' to 3' direction, and tRNA adds the correct amino acid to the growing chain. The first extreme to be translated carries the amino-terminal group, while the other extreme carries the carboxy-terminus group.ExampleWe will consider for this example the following DNA template strand.
DNI strand ⇒ 5'-TAGAACGCCTCGAAATTTCATACT-3'
Transcription
template DNI strand ⇒ 5'-TAGAACGCCTCGAAATTTCATACT-3'
mRNA ⇒ 3´-AUCUUGCGGAGCUUUAAAGUAUGA- 5´
The new mRNA strand is
mRNA ⇒ 3´-AUCUUGCGGAGCUUUAAAGUAUGA- 5´
Once the mRNA synthesis is over, the molecule leaves the nucleus and proceeds with translation in the cytoplasm.
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How long does it take harry to go 0.7 miles if he can run 1.2 miles in 6 minutes
Answers
Answer:
Harry will take 21 seconds
Explanation:
Speed = distance covered / time taken
Harry covers 12 miles in 6 minutes so,
the speed of Harry will be 12/6 = 2 miles per minute.
Therefore, if he covers 0.7 miles then time taken by him will be,
Time taken = distance covered / speed
= 0.7 / 2
= 0.35 minutes
= 0.35 x 60 seconds
= 21 seconds
I hope this helps :)
Which hypothesis most likely explains the results at 60°C and 70°C? O A. The substrate has been used up because of the high temperature, O B. The enzyme has changed shape because of the high temperature. O C. The enzyme is only effective at very high temperatures, O D. The bonds in the substrate are weakened at high temperatures
Answers
Answer: Option B
The enzyme has changed shape because of high temperature.
Explanation:
Enzymes are biological catalysts in living organisms that speed up the rate of chemical reactions.
High temperature changes the shape of enzymes.
Increase or high temperature lead to decrease in enzymes activities. This is due to enzyme protein been denatures by high temperature which is the breaking of molecular bonds within the enzyme protein. When the enzymes bonds are broken, the shape of the enzymes changes and they no longer act as catalysts.