The answer would be D.
HWE states that genotype and allele frequencies in a population remain constant from generation to generation when evolutionary influences are absent(such as gene flow or natural selection).
Final answer:
The frequency of alleles in a population that is in Hardy-Weinberg equilibrium remains the same over several generations as long as no evolutionary forces act on them. If frequency changes are observed, it indicates that the population may be evolving.
Explanation:
The Hardy-Weinberg principle outlines the conditions under which the frequency of alleles in a population remains constant over generations. This equilibrium assumes that no evolutionary forces are acting on the allele frequencies. The correct answer to the question is d. Remains the same over several generations. The principle hook on an ideal situation where there is no natural selection, no mutations, no gene flow, no genetic drift, and random mating occurs. If these conditions are met, the allele frequencies should remain unchanged from generation to generation, which implies that the population is not evolving. However, if observed allele frequencies deviate from expected values, scientists can infer that evolutionary forces are influencing the population.
Which scale is used to describe the magnitude of an earthquake?
O A Mercalli scale
B. Richter scale
OC. magnitude scale
0
OD seismic scale
Answer:
B. Richter scale.
Explanation:
The Richter scale is the scale used to measure the magnitude of an earthquake. The greater the earthquake, the sharper and longer the lines and the higher the peak and lower the draught. The smaller the earthquake, the more smooth and close to a line it would be.
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The Richter scale is used to describe the magnitude of an earthquake.
how is mitosis different in plants and animals?
A. in animals the dna is one circular chromosome
B. in plants the dna is not duplicated
C in plants a new cell wall forms to split the cell
D in animals there is no g0 phase or g2 phase
Answer: c in plants a new cell wall forms to split the cell
Yes the answer’s C.
so what’s your question?(tell me in comments)
C. In plants, a new cell wall forms to split the cell.
Mitosis is the process of cell division that occurs in both plants and animals, but there are key differences in how the process is completed.
In animals, during the final stages of mitosis (cytokinesis), the cell membrane pinches inwards, forming a cleavage furrow, which eventually splits the cell into two daughter cells. This process is possible because animal cells lack a rigid cell wall, allowing the membrane to easily bend and constrict.
In plants, however, the presence of a rigid cell wall makes it impossible for the cell to constrict in the same manner. Instead, during cytokinesis, plant cells form a cell plate in the center of the dividing cell. This cell plate grows outward, eventually developing into a new cell wall that separates the two daughter cells.
A mouse that is homozygous for the dominant trait has the genotype . It has . A mouse that is homozygous for the recessive trait has the genotype . It has . Image of fur color of mice
Answer:
A mouse, his homozygous dominant trait is AA which might be shows black color of fur and with homozygous recessive trait aa which might be shows brown color of fur.
Explanation:
A mouse, his homozygous dominant trait is AA which might be shows black color of fur and with homozygous recessive trait aa which might be shows brown color of fur.
If we cross, both the genotypes dominant trait is AA and recessive trait aa together, then the offspring will produce with all Aa genotypes which shows black color of fur of the mouse. Brown color is suppressed under the effect of dominant trait AA, but it may be appear in the F2 generation.
An organ that does not secrete digestive enzymes is the
a. pancreas
b. small intestine
c. esophagus
d. salivary gland
Study the diagram of a desert food chain .
What would most likely happen if the kangaroo rats were killed off and removed from the food chain ?
The removal of kangaroo rats from a desert food chain could lead to an overabundance of seeds and a decline in predator populations, such as kit foxes, potentially causing a collapse of the entire food web.
If the kangaroo rats were removed from a desert food chain, a ripple effect would take place, which would influence the entire ecosystem. As consumers of seeds, the absence of kangaroo rats could lead to an overabundance of seeds. Without kangaroo rats acting as a food source for their predators, such as kit foxes, these predators might face a decline in population due to a lack of food. This can create an imbalance, potentially leading to the overpopulation of some species while others might diminish or even become extinct. As tertiary consumers lose their prey, they may starve and die, which could even lead to the collapse of the entire food web. Ecosystems are interconnected, so the removal of one species, especially a key species like the kangaroo rat, can have far-reaching consequences.
During times of stress, Yanira notices that her heart pounds a little faster than normal. What part of the brain is
responsible for her increased heart rate?
Brain stem
Cerebellum
Frontal lobe.
Occipital lobe
Answer:
Cerebellum
Explanation:
The cerebellum is a region of the brain whose main function is to integrate the sensory and motor pathways. There is a large number of nerve bundles that connect the cerebellum with other brain structures and with the spinal cord. The cerebellum integrates all the information received to specify and control the orders that the cerebral cortex sends to the musculoskeletal system through the motor pathways. It is the regulator of physiological tremor.
What is a fuel body use for energy
Answer: Carbohydrates like sugar and starch are readily broken down into glucose, which is the body's main energy source. Glucose can be used immediately as fuel or stored as glycogen.
A student found the following flowchart in a text book. Which chemical reaction best summarizes the matter and energy transfers that occur during the process shown?
Answer:
B
Explanation:
The process shown is cellular respiration
The products of photosynthesis are the inputs of cellular respiration
Therefore sugar and oxygen being converted into ATP for Cellular Respiration makes the answer B
hope that helped
Answer:
B. Sugar + O₂→ ATP + CO₂+ Water
Explanation:
The flowchart given in the question is steps of cellular respiration. It is a process which takes place all living cells. Glycolysis occurs in the cytoplasm whereas, Krebs cycle and electron transport chain occurs in the mitochnodria. In this process the respiratory substrate such as sugrar is oxidised completely in presence of oxygen to produce ATP, carbon dioxide and water.
name three things that happen within two weeks of fertilization?
Answer:
ovulation, Hormones Rise and Egg Travels to the Fallopian Tube
Explanation:
Answer:
germination and first growth
What are scattered over like pepper over the endoplasmic reticulum
Answer:
Ribosomes
Explanation:
The endoplasmic reticulum is a network of interconnected sacs and tubules distributed throughout the cytosol. There are two types of endoplasmic reticulum: smooth endoplasmic reticulum and rough endoplasmic reticulum. The rough endoplasmic reticulum is the one that has ribosomes studded on its outer surface. The presence of ribosomes gives the rough endoplasmic reticulum a rough appearance.
On the other hand, the smooth endoplasmic reticulum has a smooth outer surface due to the absence of ribosomes on it. The main function of rough endoplasmic reticulum is protein synthesis as ribosomes are the site for protein synthesis. The smooth endoplasmic reticulum is involved in lipid biosynthesis.
Which step is the same in both forms of fermentation, as well as in cellular respiration?
Glycolysis is the only energy extraction mechanism used throughout fermentation, with one or two additional processes added at the end. Both cellular respiration and fermentation start with glycolysis.
How fermentation, and cellular respiration, similar in some steps?Many different kinds of organisms and cells use fermentation, another anaerobic (non-oxygen-requiring) process for breaking down glucose.
Glycolysis is the only energy extraction mechanism used throughout fermentation, with one or two additional processes added at the end.
An anaerobic metabolic process that begins with the same stage as cellular respiration—the production of pyruvic acid by glycolysis, where net 2 ATP molecules are produced. Pyruvate is converted to lactic acid, ethanol, or other compounds in the following phase.
Therefore, both cellular respiration and fermentation start with glycolysis.
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which condition allows liquid water to exist on earth
a. weak salinity
b. strong gravity
c. living things
d. freezing temps
Answer:
d. freezing temps
Explanation:
Freezing temps allows liquid water to exist on earth.
When does the cell pinch off and divide into two daughter cells in mitosis?
During cytokinesis, cell pinch off and divides into 2 daughter cells in mitosis.
What is cytokinesis?The division of the nucleus occurs after the cytoplasm (cytokinesis) during the cell cycle (karyokinetic).
Different cytokinesis processes take place during cell division in animal and plant cells.
Animal cells undergo cytokinesis by the production of two daughter cells as the parent cell's plasma membrane pinches inward along the equator, whereas plant cells undergo cytokinesis through the formation of a cell plate.
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Which of the following is a heterotroph?
sunflower
potato
butterfly
soybeans
Answer:
Butterfly
Explanation:
a heterotroph is an organism that cannot make its own food, and therefore relies on other organisms for sustenance.
potatoes, sunflowers and soybeans are all plants and make their own food through photosynthesis
(they are called autotrophs)
However a butterfly relies on flowering plants to provide the nectar that it consumes.
if all the flowering plants suddenly died the butterflies would most likely die as well because their food source has been eliminated.
therefore the butterfly is a heterotroph
Which of the following is a true statements about viruses?
Viruses have no nucleus.
Viruses are alive.
Viruses have a cell membrane.
All viruses are deadly.
The true statement about viruses is that they have no nucleus. Viruses are acellular entities that require a living host to reproduce and are not considered alive since they cannot maintain homeostasis or reproduce on their own.
The true statement about viruses is that viruses have no nucleus. Unlike living cells, viruses are acellular and do not have a cell membrane, cytoplasm, or ribosomes. They need a living host to reproduce as they cannot replicate outside of a host cell. Not all viruses are deadly, and while some can cause serious illness, many can be relatively harmless or cause only mild diseases.
The viral structure can be simplified as a nucleic acid (either DNA or RNA, but not both) encased in a protein coat known as a capsid, and in some cases, an envelope derived from the host's membrane with embedded glycoproteins that help the virus attach to the host cell. These characteristics make viruses unique entities on the borderline of living and non-living matter.
How do organ systems work together to deliver nutrients from food throughout the body?
Answer: The digestive system breaks down food and the circulatory system transports nutrients to cells. Hope this helps.
Explanation:
Which of the following is true of red blood cells?
A. They have multiple nuclei
B. Once created in bone marrow, they circulate for our lifetime
C. They live for only 120 days
D. They live for only about 20 days
Answer:
C. They live for only 120 days
Explanation:
Red blood cells are small and biconcave cells that are known for their lack of nucleus. (Rules out A) Aside form that, they also lack mitochondria and robsomes. They are created in the bone marrow and they live for about 100 to 120 days (rules out B and D) before macrophages recycle them.
Answer:
C
Explanation:
Which causes a sea breeze
The wind will blow from the higher pressure over the water to lower pressure over the land causing the sea breeze. The sea breeze strength will vary depending on the temperature difference between the land and the ocean. At night, the roles reverse. The air over the ocean is now warmer than the air over the land.
hopefully i got this right and also helped
In terms of biomass, deep ocean habitats are similar to _____. rain forests deserts grasslands coral reefs
Answer: deserts
Explanation:
Deep ocean habitats are typically the abyssal floors which consists of very few nutrients and this region receives very low sunlight and even no sunlight this results in scanty growth of plants just like deserts. As the plant growth is scanty the animals and zooplankton population dependent upon plants is also low.
It is Deserts..................................
What is an outcome of gene regulation
A. every cell produces all types of proteins
B. each cell is able to produce only one protein
C. each cell produces only the proteins it needs
D. each cell contains the genes for only one protein
Gene regulation results in each cell producing only the proteins it requires. It allows a cell to express or suppress genes as needed, creating differences between cell types.
Explanation:The outcome of gene regulation is that each cell produces only the proteins it needs (option C). In other words, gene regulation allows a cell to express or suppress gene information as necessary, thus helping it respond appropriately to its changing needs and the conditions around it. This is why, for instance, a liver cell differs from a muscle cell, even though they contain the same genetic information. The liver cell will only produce proteins necessary for its functions whilst suppressing the genes required for muscle functions, and vice versa.
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Secondary succession would most likely be taking place in a(n)
Answer:
After A Lava Flow Or Flood
Explanation:
Answer: A) abandoned field.
Explanation:
which microscope creates a two dimensional image
A compound microscope creates a two-dimensional image. It's constructed from two convex lenses, with the first serving as the eyepiece and the second as the objective lens. It does not construct a three-dimensional image like confocal microscopes.
Explanation:.As the light travels through these lenses, the image is maximally focused at a single distance from the observer creating a two-dimensional image. A compound microscope provides a magnified and clear view of tissue structure as well as the anatomy of the whole organism, but unlike other forms of microscopy, does not construct a three-dimensional image by scanning multiple z-planes successively like the confocal microscope.
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Final answer:
A compound microscope typically creates a two-dimensional image through the use of convex lenses. Confocal microscopes enhance this capability, allowing for the capture of high-resolution two-dimensional images at different depths that are reconstructed into three-dimensional images using computer software.
Explanation:
The type of microscope that creates a two-dimensional image is a standard compound microscope, which generally comprises two sets of convex lenses: the eyepiece and the objective lens. However, when it comes to sophisticated microscopy techniques capable of capturing higher resolution images, confocal microscopy enters the picture. Despite its capability of producing numerous two-dimensional high-resolution images at various depths, a confocal microscope is also able to reconstruct these images into a three-dimensional image with the help of specialized software. The confocal microscope makes use of a laser to scan the specimen at multiple z-planes, using a pinhole to eliminate out-of-focus light, hence significantly enhancing images of thicker specimens. Contrastingly, the two-photon microscope represents a more advanced form of imaging, capable of penetrating deeper into thick specimens and is highly suitable for live cell imaging in intact tissues.
How are sex-linked traits inherited? Alleles are passed from the parents’ sex chromosomes to nonsex chromosomes in the offspring. Alleles are passed from the parents’ nonsex chromosomes to the sex chromosomes in the offspring. Alleles are passed from the parents’ sex chromosomes to the sex chromosomes in the offspring. Alleles are passed from the parents’ nonsex chromosomes to nonsex chromosomes in the offspring.
Answer:
alleles are passed from the parents sex chromosomes
Explanation:
sex linked chromosemes are found in the y and x chromosomes in the reproductive cell i.e the sperm and ovum
The right answer for this question is C - sex-linked traits are inherited through alleles, which are passed from the parents' nonsex chromosomes to the sex chromosomes in the offspring. This means that the child will have a combination of both parents' nonsex chromosomes.
as water is cooled from 4 to 0, its density ____
As water is cooled from 4 to 0, its density "decreases." Density is the amount of substance per a specific volume. So, if the water cools it's density decreases, but as the temperature rises it's density will increase because liquid to a gas and a gas has a high density then a liquid.
Hope this helps.
When one animal looks like another animal to protect itself, this adaptation is called
Answer: I believe that would be camouflage.
Explanation:
Camouflage is a defense mechanisms.
this is called mimicry. mimicry is the imitation or looking like something else like in this case. this is also because mimicry is the act of copying the sounds or behaviour of another person or animal.
What will occur when the carrying capacity for humans is met?
A. Diseases will increase.
B. Natural disasters will increase.
C. The death rate will decrease.
D. The population will increase.
Answer:
A. Diseases will increase
Answer: A. Diseases will increase.
Explanation:
A limiting factor is the one which is potent enough to limit the growth, abundance and distribution of the population of species in an ecosystem. Carrying capacity is the maximum number of the population of species which an ecosystem can support by availing resources. If the population exceeds above the carrying capacity, it starts declining.
According to the situation given, diseases will increase is the correct option. Diseases can be limiting factor for reducing the population of humans in an area. Hence, will maintain the carrying capacity.
In human females, the process of cell division, meiosis occurs in cells of the:
Answer:
ovaries
Explanation:
In human females, the process of cell division, meiosis occurs in cells of the ovaries.
The process of meiosis occurs in the sexual organs of sexually producing organisms.
Answer:
Ovaries
Explanation:
In human females, the process of cell division, meiosis occurs in cells of the Ovaries.
This is also called oogenesis.
plants take in the suns energy by absorbing
a. chlorophyll b.
b.chlorophyll a
c.high-energy sugars
d.sunlight
The answer is D. Sunlight
State one way a complete blockage at location X would affect the reproductive process ? Please answer !!
Answer:
There would be no fertilization.
Explanation:
When the fallopian tube is blocked, even after ovulation (an egg released by the ovary), it will be unable to travel down the fallopian tube towards the uterus. This way, even when the sperm swim up to the tube (where fertilization of the egg usually occur) after copulation, it will be unable to meet the egg and fertilize it. There will never be conception as long as there is blockage on location X.
Impressions of tropical swamp plants were observed on rocks in polar regions. The impressions were dark black imprints, which means the fossils are examples of BLANK 1 . The fossils tell us that polar regions BLANK 2 .
Question 1
A.) carbonization
B.) mineralization
C.) trace fossils
Question 2
A.) had a tropical plant that could grow in ice
B.) might of had a different climate in the past
C.) will have abundant vegetation
Answer:
1 A, 2 B.
Explanation:
1. In carbonization, a thin film of carbon mineral is formed on the fossils, giving them a dark black coloration, which makes us conclude that the fossils observed are an example of carbonization.
2. The presence of tropical swamp plant impressions in polar regions is an indication of a different, likely warmer climate in the past, in the polar regions, because plants commonly grow in similar conditions as their living counterparts and no tropical swamp plants are known that can live in polar regions today. Lichens that live in the tundra are not real plants.
Answer:
Impressions of tropical swamp plants were observed on rocks in polar regions. The impressions were dark black imprints, which means the fossils are examples of trace fossils . The fossils tell us that polar regions had tropical plants that could grow in ice.
Explanation:
hope it helps :)