Answers
Answer: A
Explanation: A is the cell membrane which is the one that controls what goes in and what goes out
Explanation:
Related Questions
By having juvenile dinosaurs live in a different niche than the adults decreased competition between the adults and juveniles. True or False
Answers
True: By having juvenile dinosaurs live in a different niche than the adults decreased competition between the adults and juveniles.
Tarbosaurus bataar is the juvenile species of the dinosaurs found 70 million years ago. The adult species the Tyrannosaurus rex has a close relationship with the juvenile or the young species. The juvenile species of these dinosaurs lived in a different niche than the adult species. They were fast and agile and went after hunting smaller prey for their survival.
T.rex adults were comparatively larger than their younger ones. They had larger skulls, stronger bites, large muscle attachments, and specialized teeth. While the juvenile species were deprived of these features. This could be the reason why juvenile species faced decreased competition than adults.
Therefore, from the above answer, we can say that the given statement that having juvenile dinosaurs live in different niches than the adults decreased competition between the adults and juveniles.
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Compare the ancient world map to the modern world
map. Then answer the question that follows.
Which statement best describes the differences
between these maps?
The ancient map shows the sizes of continents
accurately.
O The modern map shows landforms.
O The ancient map shows the entire world.
O The modern map is hand drawn.
Answers
Answer:
B: The modern map shows landforms.
Explanation:
I just did it
Synthesis is defined as separating the pieces of a cell
Answers
Answer:
...what's the question here?
Which organisms can reproduce using the process of fragmentation
Answers
Fragmentation is a form of asexual reproduction and is seen in annelids, fungi, cyanobacteria, sponges, and flatworms.
In Fragmentation, an organism divides itself into a number of fragments. It occurs when an organism completely breaks down independently irrespective of the other parts. Each one of these fragments matures into fully grown adults that are clones of the original organism.
Asexual reproduction usually involves the participation of a single parent alone can produce new offspring. The newly produced individual is genetically identical to one another and its parent. Both multicellular and unicellular organisms divide by fragmentation which is asexual reproduction.
Fragmentation is the most common method of reproduction in lower invertebrates. It is seen in many organisms including filamentous cyanobacteria, algae, lichens, molds, many plants, and animals such as flatworms, annelid worms, sponges, and sea stars.
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The organisms that can reproduce by fragmentation are Option d Sponges and Sea anemones.
Fragmentation is a form of asexual reproduction in which an organism breaks into two or more fragments, and each fragment develops into a new individual. Both sponges and sea anemones are examples of organisms that exhibit this mode of reproduction.
Sponges are simple multicellular animals that lack true tissues and organs. They possess a porous body structure, and when a sponge is fragmented, each fragment has the potential to develop into a new sponge through regeneration. These fragments contain specialized cells called archaeocytes that can differentiate into various cell types required for the formation of a new sponge.
Sea anemones, on the other hand, are marine animals belonging to the phylum Cnidaria. They have a cylindrical body with tentacles surrounding their mouth. When a sea anemone is fragmented, each piece can regenerate into a complete individual. The process involves the differentiation of cells within the fragments, leading to the development of new tentacles, body parts, and eventually a mature sea anemone.
Both sponges and sea anemones have remarkable regenerative abilities, allowing them to reproduce through fragmentation. This form of asexual reproduction enables them to colonize new areas, expand their population, and adapt to changing environmental conditions. Therefore the correct option is D
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The Question was Incomplete, Find the full content below :
The organisms which can reproduce by fragmentation are:
(a) Corals and Sponges
(b) Corals and Spirogyra
(c) Sea anemone and Spirogyra
(d) Sponges and Sea anemones.
Compare the growth of normal cells with and without growth factors.
Answers
Answer:
In contrast to normal cells, cancer cells don't stop growing and dividing, this uncontrolled cell growth results in the formation of a tumor. Cancer cells have more genetic changes compared to normal cells, however not all changes cause cancer, they may be a result of it (:
Explanation:
hope this helped <3
Giant sequoias can grow to be nearly 100 meters (328 feet) tall. They rely on a complex transport system to allow
water to travel from the roots to the leaves at the top of the tree.
Which transport tissue allows water to travel upward from the roots to the leaves?
Enter your answer in the box.
Answers
The transported tissue that allows water to travel upward from the roots to the leaves is the xylem tissue in vascular plants such as in this case giant sequoia.
What is the function of the xylem tissue in trees and vascular plants?The function of the xylem tissue in trees and vascular plants is to transport water and dissolved solutes from the roots to the upper organs, i.e., the shoot and leaves.
Therefore, with this data, we can see that function of the xylem tissue in trees and vascular plants is based on water transport.
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Which is not a cost for organisms that sexually produce?A) Need for increased resourcesB) Energy spent to find a mateC) Development of internal regularity systems for sexD) Slow rate of adaptation
Answers
The correct answer is letter A) Need for increased resources. Since, sexual reproduction requires the normal input of resources. Increased resources are a typical need of organisms that reproduce asexually.
Civil engineers conducted a land survey in a hilly region, where roads were carved out between steep hillside slopes. Complete the passage to reveal the engineers’ safety recommendations for the area. The engineers noted that the area was prone to rockfalls and landslides. They proposed a plan to secure the rocky hillside slopes using . They also advised their team that if the slopes are not stabilized, could cause damaging mass movement without warning.
Answers
Mass wasting is movement of rock and soil down the hill. The rocky hillside slopes can be secured by slope reinforcement. if the slopes are not stabilized, landslide can cause damage.
What do you mean by mass wasting?Mass wasting is the movement of rock and soil down slope under the influence of gravity. Rock falls, slumps, and debris flows are all examples of mass wasting. Often lubricated by rainfall or agitated by seismic activity.
The most common types of mass wasting are slumps, rockslides, debris flows, and earthflow. Slumps are slow and short-distance downslope movements of semi-consolidated earth material on a curved or planar sliding surface.
The most destructive type of mass movement is a landslide, which occurs when rock and soil slide quickly down a steep slope. Some landslides may contain huge masses of rock, while others may contain only a small amount of rock and soil.
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Answer:
wire mesh and bolts, gravity
Explanation:
Civil engineers conducted a land survey in a hilly region, where roads were carved out between steep hillside slopes. Complete the passage to reveal the engineers’ safety recommendations for the area.
The engineers noted that the area was prone to rockfalls and landslides. They proposed a plan to secure the rocky hillside slopes using wire mesh and bolts.They also advised their team that if the slopes are not stabilized, Gravity. could cause damaging mass movement without warning.
What are the light-independent and light-dependent reactions of photosynthesis? What do electrons do during them?
Answers
Photosynthesis divides into light-dependent and light-independent reactions.
The light-dependent reactions happen in the thylakoid membrane, where the chlorophyll absorbs a photon and then loses an electron, which then enters an electron transport chain that reduces NADP into NADPH. The electron's movement also creates a proton gradient, which is used by the ATP synthase to create ATP. The chlorophyll regains the lost electron from water splitting, which produces oxygen as a waste product.
The light-independent reactions are a process called the Calvin cycle, which uses the NADPH and ATP produced in the light-dependent reactions as well as carbon dioxide and the protons from the water-splitting to create glucose, a 3 carbon carbohydrate.
A researcher is studying a rodent species with a lot of variability in tail length. Individuals may have short tails, medium tails, or long tails. The researcher has noticed that a new invasive predator, which catches prey by their tails as they try to escape, seems to catch individuals with long talls more often than those with short talls. Based on a small field trial, the relative fitness of long-tailed individuals seems to be 0.6 compared to short-tailed ones (1.0), with medium tails in-between (0.8) Use the Examples tab to predict the outcome after selection for the rodent in regions with the invasive predator. What describes the population after 100 generations of selection?
a. Short-tailed individuals are the most common phenotype.
b. Short-tailed individuals are the only phenotype.
c. This is an example of disruptive selection
d. The long-tailed phenotype is no longer present
e. This is an example of stabilizing selection.
f. This is an example of directional selection.
Answers
Answer:
a. Short tailed individuals are the most common phenotype.
Explanation:
Phenotype is individual who have interaction of genotype with the environment. Phenotype is physical expression of DNA. Short tailed phenotype are very dominant type offspring. Short tailed phenotype are dominant while long tailed phenotype are recessive.
The study of genes and inheritance is called genetics. In a gene pair, one allele is recessive and the other is dominant.
The correct answer is mentioned as Short-tailed individuals are the most common phenotype.
What is phenotype?The phenotype is the set of observable characteristics or traits of an organism. The term covers the organism's morphology or physical form and structure, its developmental processes, its biochemical and physiological properties, its behavior, and the products of behavior.According to the question, The phenotype is an individual who has the interaction of genotype with the environment.
Phenotype is the physical expression of DNA. Short-tailed phenotypes are very dominant type offspring. Short-tailed phenotypes are dominant while long-tailed phenotypes are recessive.
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An organism with a dominant allele for a particular form of a trait only exhibits the trait sometimes. Please select the best answer from the choices provided T F
Answers
Answer:
False. An organism with a dominant allele for a particular form of a trait always exhibits that trait.
Explanation:
According to Mendelian genetics, a dominant allele for a given characteristic will always be expressed in the phenotype, regardless of whether its allelic formula is with both dominant alleles or heterozygous.
In the heterozygous form, the dominant allele is able to avoid the expression of the recessive allele, expressing the phenotype. The recessive allele will only be visible in the genotype when both alleles in the pair are recessive.
In non-Mendelian inheritance, however, there are cases where the dominant allele is expressed in conjunction with another allele, such as co-dominance. In intermediate inheritance different alleles —dominant and recessive— are combined and expressed as a combined characteristic.
Which is an example of geographic isolation?
Responses
A Two groups of albatross live on separate islands but commonly cross from one island to the other.Two groups of albatross live on separate islands but commonly cross from one island to the other.
B A group of snakes is unable to cross a river and is separated from a group of snakes on the opposite side.A group of snakes is unable to cross a river and is separated from a group of snakes on the opposite side.
C A species of chipmunk becomes extinct because of a lack of food.A species of chipmunk becomes extinct because of a lack of food.
D One group of frogs mates in spring and another mates in fall, effectively isolating the two groups from breeding with each other.
Answers
A group of snakes that is unable to cross a river and is separated from a group of snakes on the opposite side is an example of the geographic isolation process (Option B).
What is the geographic isolation process?The geographic isolation process refers to all types of geographic barriers such as rivers that limit the gene flow between individuals of the same species.
Therefore, with this data, we can see that the geographic isolation process is associated with a limited gene flow in a population due to geographic barriers between individuals.
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biology home work 8 questions
Answers
Simple diffusion and Facilitated diffusion are the two primary categories of diffusion.
Simple diffusionAn action where the substance passes across a semipermeable barrier or solution without the aid of transport proteins. For instance, bacteria use simple diffusion to transport minute nutrients, water, and oxygen into the cytoplasm.Facilitated diffusionFacilitated diffusion is the passive transfer of molecules from the area of higher concentration to the area of lower concentration across the cell membrane using a carrier molecule.
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The cell membrane is mainly made up of lipids and proteins. It acts as a barrier to the surrounding environment. Which of the following statements about lipids BEST supports the argument that lipids help protect the contents of the cell?
Responses
Lipids that are placed in water do not dissolve.
Lipids that are placed in water do not dissolve.
The tail of a lipid is made of carbon and hydrogen.
The tail of a lipid is made of carbon and hydrogen.
Individual lipids in a membrane can rotate freely.
Individual lipids in a membrane can rotate freely.
Lipids are composed of a head and a thin tail
Answers
Lipids helps in protecting the contents of cell because it is hydrophobic , when placed in water they do not get dissolve.
There is a characteristic that unites the various chemicals that make up lipids. Insoluble in water, lipids are hydrophobic ("fear of water"). In a cell, lipids have a wide range of activities. Fat-like lipids, often known as lipid stores, are how cells keep energy for long-term use. For both plants and animals, lipids act as a barrier between them and their surroundings. As an illustration, their water-repellent properties aid in keeping aquatic birds and mammals dry. A significant component of the plasma membrane, lipids serve as the building blocks for numerous hormones. The several types of lipids are fats, oils, waxes, phospholipids, and steroids.
Thus, lipids cell membrane are the structural barrier of cell and helps in protecting its contents .
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in which direction do striped bass migrate in the winter
Answers
Answer:
south
Explanation:
Striped bass will tolerate water Temps in the mid 40s and are one of the last species to migrate south to their winter grounds
Answer:
Striped Bass migrate south in the winter.
Explanation:
the area of the brain required to understand language is
Answers
Answer:
Wernicke's region is a basic language region in the back better fleeting flap interfaces than Broca's region by means of a brain process. Wernicke's region is basically engaged with the perception. By and large, this region has been related with language handling, whether it is composed or spoken.
____ a are substances that are present in different concentrations on each side of a membrane and the membrane is impermeable to that substance
Answers
"Osmotic imbalances are substances that are present in different concentrations on each side of a membrane, and the membrane is impermeable to that substance."
Further explanation;
Osmotic imbalances occur when there is a difference in the concentration of solutes (such as salt, sugar, or ions) on either side of a selectively permeable membrane. This causes the solvent (usually water) to move from the side of low concentration to the side of high concentration, leading to a change in volume or pressure of the solution. The membrane is impermeable to certain substances, such as large molecules or ions, and this creates a concentration gradient that drives osmosis.
toxonomy of cryptosporidium??
Answers
Answer:
toxonomy
Explanation:
because is bests that cryptosporidium
2. Many people believe that a mutation will always result in the formation of a deadly tumor, or the development of a major body defect.
Explain why this is incorrect.
. There are multiple types of mutations in DNA. ______________mutations occur when a single base is changed to a different base pair.______________mutations remove one or more bases from a segment of DNA, resulting in a frameshift mutation. __________mutations are also considered frameshift mutations, and occur when one or more extra bases are added to a segment of DNA.
Answers
Answer:
substitution; deletion; insertion
Explanation:
Mutations are genetic changes generally associated with deleterious effects. However, mutations may not have an effect on the phenotype of the organism and even, eventually, they are beneficial. For example, a missense substitution occurs when a nucleotide is replaced by another that changes the encoded amino acid, which may have deleterious or beneficial effects (depending on the new protein and its effects on the fitness of the individual in a particular environment), while a silent substitution does not modify the encoded amino acid and thereby it has no effect on the phenotype. On the other hand, a frameshift mutation is a mutation that involves the insertion or deletion of a nucleotide base, thereby irreversibly altering the Open Reading Frame (ORF) of the protein.
why genetic factor is very important in crop production
Answers
Answer:
The wise use of crop genetic diversity in developing improved crops can contribute significantly to protecting the environment. Crop varieties that are resistant to pests and diseases can reduce the need to apply harmful pesticides. More vigorous varieties can better compete with weeds, reducing the need for applying herbicides .
Explanation:
From what do elk obtain the chlorophyll and nitrogen that is found in their waste?
Answers
QUESTION 31 Chipmunk mitochondrial DNA was fingerprinted using the single primer amplified region technique (SPAR) and the PCR reaction. One four base primer was used. If the DNA from chipmunk mitochondria is a circlular piece of DNA about 16000 base pairs long, how many fragments should be produced by this technique
Answers
Answer:
It depends on the size of the amplified DNA fragments (for example for SPAR markers consisting of 200 bp in length >> 1600 / 200 = 8)
Explanation:
The PCR based single primer amplification reaction (SPAR) methods are tools for detecting genetic diversity by using DNA markers such as Simple Sequence Repeats (ISSRs), Minisatellite DNA regions (DAMDs) and Random Amplified Polymorphic DNAs (RAPDs), which can be used alone or combined with each other. In the last years, the SPAR methods have gained attention in the scientific community because they are cost-effective and highly effective for the detection of both intraspecific and interspecific genetic variation. In the SPAR methods, the size of the bands will depend on the length of the amplified DNA fragments.
A fly has two alleles for the color of its eyes. The green allele is recessive, and
is represented by q. The blue allele is dominant, and is represented by p. If 28
of 100 organisms are green, what is p?
Homozygous dominant+ Heterozygous + Homozygous recessive = 1
OA. 0.72
B. 0.28
C. 0.53
D. 0.47
✓
p+2pq+q² = 1
Answers
The frequency of the dominant blue allele, represented by p, is D. 0.47. This means that 47% of the creatures in the population have the blue eye colour allele.
The equation p + 2pq + q² = 1 represents the Hardy-Weinberg equilibrium equation, which describes the frequencies of alleles in a population.
In this case, p represents the frequency of the dominant blue allele, q represents the frequency of the recessive green allele, and p + q = 1 because these are the only two alleles in the population.
Given that 28 out of 100 organisms are green (q² = 28/100), we can find the value of q. Taking the square root of q², we get q = √(28/100) = 0.53.
Since p + q = 1, we can substitute the value of q to find p. Therefore, p = 1 - q = 1 - 0.53 = 0.47.
So, the value of p, representing the frequency of the dominant blue allele, is 0.47. This indicates that 47% of the organisms in the population have the blue allele for eye color. Therefore, Option D is correct.
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Which of the following tissues would NOT be found in fibrovascular bundles?
Answers
Answer:
Phloem cells are hollow and nonliving, and they form a continuous pipeline that transports sugars.
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How is mitochondrial DNA(mtDNA) typing used in forensic science?
Answers
Mitochondrial DNA (mtDNA) typing is used in forensic science because it is transmitted from a matrilineal inheritance pattern and can identify an individual.
What is Mitochondrial DNA?Mitochondrial DNA (mtDNA) is a type of genetic material exclusively present in mitochondria, a small organelle that is independent of the cell nucleus.
Mitochondrial DNA (mtDNA) is well known to be inherited from the mother, thereby it enables the identification of the matrilineal lineage of an individual.
In conclusion, Mitochondrial DNA (mtDNA) typing is used in forensic science because it is transmitted from a matrilineal inheritance pattern and can identify an individual.
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Need this asp
Nucleotides contain sugar, a phosphate group, and a nitrogen base. Which of the following is a nitrogen base? (1 point)
A. ribose
B. tyrosine
C. deoxyribose
D. guanine
Answers
Answer:
D
Explanation:
Guanine is a nitrogen base
Some igneous rock forms from magma that cools slowly within Earth’s crust. Briefly describe the most likely crystallization and texture of the rock. Other igneous rock forms from lava that cools quickly on Earth’s surface. Classify the rock as either intrusive or extrusive, and identify another word used to describe this type of rock. You are studying a sample of igneous rock. The rock formed on the surface of Earth. It’s made mostly of light-colored minerals. The sample has just a few specks of dark-colored minerals. Classify the rock by type and composition. You are studying a sample of igneous rock. The rock formed within Earth’s crust. The sample contains a very high concentration of dark-colored, high-density minerals. Classify the rock by type and composition. A scientist shows you a sample of rock called gabbro. The scientist explains that gabbro is an intrusive mafic igneous rock. Explain what this means.
Answers
2. Igneous rock that forms from lava that cools quickly on Earth's surface is called extrusive igneous rock. This type of rock is also known as volcanic rock.
3. The igneous rock with mostly light-colored minerals and just a few specks of dark-colored minerals is likely a felsic extrusive igneous rock, such as rhyolite.
4. The igneous rock with a high concentration of dark-colored, high-density minerals likely belongs to the mafic intrusive igneous rock category, such as gabbro.
5. Gabbro is an intrusive mafic igneous rock, which means that it formed from magma that cooled slowly beneath the Earth's surface, allowing for the formation of large crystals. Mafic refers to the high concentration of dark-colored minerals, such as iron and magnesium, which give the rock its characteristic dark color.
Drag each label to the correct location on the image. Not all labels will be used.
Match the labels with the symbols on the weather map.
cold front
warm front
low pressure
strong winds,
cloudless
strong winds,
very cloudy
high pressure
occluded front
I need help now please!
Answers
About the question:
You will find the map in the attached files
Answer:
Cold front → blue line/trianglesWarm front → red line/semicircles Occluded front → lines with triangles and semicircles Low pressure → LHigh pressure → H Strong winds, cloudless → White key Strong winds, very cloudy → Black filled keyExplanation:
ISOBARS:
These are lines that join points of similar pressure and indicate atmospheric pressure for different regions. If lines are very close to each other, means that there will be bad weather. This is because, at a short distance, pressure values change, meaning atmospheric instability.
PRESSURE ZONES:
Isobars indicate the speed and direction of winds. Winds move from high atmospheric pressure areas to lower atmospheric pressure areas. When isobars are placed as small circles, there is a letter indicating the pressure center. It can be either high pressure symbolized with an H, or low pressure symbolized with an L.
High-pressure zones, H, represent anticyclones and are associated with good weather.Low-pressure zones, L, represent cyclones and are associated with bad weather. The closer the lines are to each other, the stronger will be the winds.FRONT TYPES:
There are different types of fronts, which can be represented with different symbols.
Cold front: In weather maps, these are represented with blue lines with triangles indicating the direction of the wind movements. Warm front: In weather maps, these are represented with red lines with semicircles indicating the direction of the wind movements. Occluded front: It can be warm or cold. These are represented with purple lines with triangles and semicircles indicating the direction of the wind movements.CLOUD COVER / WIND SPEED:
Indicated as a key figure on the map.
Circle: Represents the percentage of cloud cover. The clouder it is, the more black will be the circle. Stick: Represents the wind speed. The stick can have lines indicating the degree of speed → stick with no transversal line indicates 1-4 mph, one line means 5-8 mph, two lines 9-14 mph. And so on.
What is the difference between constructive and destructive food processes?
Answers
Answer:
Constructive refers to forming a new thing while destructive refers to broken down a substance.
Explanation:
Constructive food process is a type of process in which a new food is formed from the combination of different types of raw materials such as formation of sugar and cornflakes etc., while destructive food process is a type of process in which foods are broken down into other simpler substances such as carbohydrates or starch broken down into glucose or disaccharide etc.
what is the cytoplasm job in the factory?
Answers
Answer:
factory floor!
Explanation:
function:
Contains the organelles; site of most cell activity.