Which is the most mature from of embryonic development?
blastocyst
trophoblast
zygote
morula
Answers
Answer:
blastocyst
Explanation:
Human embryology is the study of this development during the first eight weeks after fertilization. The normal period of gestation (pregnancy) is about nine months or 40 weeks.
The germinal stage refers to the time from fertilization through the development of the early embryo until implantation is completed in the uterus. The germinal stage takes around 10 days.[3] During this stage, the zygote begins to divide, in a process called cleavage. A blastocyst is then formed and implants in the uterus. Embryogenesis continues with the next stage of gastrulation, when the three germ layers of the embryo form in a process called histogenesis, and the processes of neurulation and organogenesis follow.
In comparison to the embryo, the fetus has more recognizable external features and a more complete set of developing organs. The entire process of embryogenesis involves coordinated spatial and temporal changes in gene expression, cell growth and cellular differentiation. A nearly identical process occurs in other species, especially among chordates.
Related Questions
The inner cell mass of the trophoblast developments into the primary germ layers which are named the _______, _______, and _______.
a. endometrium, myometrium, perimetrium
b. zygote, embryo, fetus
c. epithelium, muscle, nervous, connective
d. zygote, morula, blastocyst
e. endoderm, ectoderm, mesoderm
Answers
The inner cell mass of the trophoblast developments into the primary germ layers which are named the endoderm, ectoderm ,and mesoderm. The correct alternative is option e.
The inner cell mass of the trophoblast, also known as the embryonic disk, gives rise to the three primary germ layers: endoderm, ectoderm, and mesoderm. These germ layers form the basis for the formation of all of the tissues and organs in the developing embryo.
The endoderm is the innermost layer and gives rise to the lining of the gut and respiratory system, among other organs.
The ectoderm is the outermost layer and gives rise to the skin, hair, nails, and the nervous system.
The mesoderm is the middle layer and gives rise to the muscles, skeleton, blood and circulatory system, and the kidneys, among other organs.
These germ layers differentiate and specialize to form the complex structures and systems of the developing embryo.
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determine which of the two effectors has an inhibitory effect.
Answers
The inhibitory effect is produced by the Parasympathetic nervous system, the antagonist of the Sympathetic nervous system.
The Autonomic nervous system has two subdivisions, Sympathetic and Parasympathetic. Both of these divisions are responsible for involuntary body functions such as digestion, heart rate, blood pressure, and breathing. The Sympathetic nervous system activates and accelerates the heart rate, increases the blood pressure, and opens the airways.
At the same time, it reduces digestion, constricts blood vessels, and dilates the pupils. The Parasympathetic nervous system has an inhibitory effect that opposes the sympathetic division. It reduces the heart rate and blood pressure and promotes digestion. It constricts the pupils and bronchioles, and it increases the secretion of mucus. In summary, the inhibitory effect is produced by the Parasympathetic nervous system, the antagonist of the Sympathetic nervous system.
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If both lactose and glucose are provided in the growth medium of a culture of E. coli _____. (Check all that apply). Select 2 correct answer(s) Question 4 options: Lactose metabolism is favored Glucose is favored The lac operon is not transcribed Lactose is degraded
Answers
If both lactose and glucose are provided in the growth medium of a culture of E. coli, the two correct options are:
1. Glucose is favored.
2. The lac operon is not transcribed.
In the presence of both lactose and glucose in the growth medium, E. coli will preferentially metabolize glucose because it is a more efficient energy source. This phenomenon is known as catabolite repression. During this process, the presence of glucose inhibits the expression of the lac operon, which is responsible for lactose metabolism.
The lac operon consists of three structural genes (lacZ, lacY, and lacA) and is regulated by a promoter, operator, and repressor proteins. When glucose levels are high, the production of cyclic AMP (cAMP) is reduced, and the catabolite activator protein (CAP) cannot bind to the promoter region. As a result, the lac operon is not transcribed, and lactose metabolism does not occur.
In summary, when both lactose and glucose are present in the growth medium of a culture of E. coli, glucose is favored as the primary energy source, and the lac operon is not transcribed, preventing lactose metabolism.
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Why is the the ability of glucose to affect transcription of the lac operon an advantage for the bacterial cell?.
Answers
The ability of glucose to affect the transcription of the lac operon is an advantage for the bacterial cell because glucose is the preferred sugar for the bacteria.
The lactose operon is an operon required for the transport and metabolism of lactose in E. coli and many other enteric bacteria.
In the lactose operon of Escherichia coli, the final targets of glucose are the lac repressor and the positive regulator, the complex of the cAMP receptor protein (CRP) and cAMP. First, glucose prevents the entry of the inducer into the cell, resulting in an increase in the concentration of the inducer-free lac repressor.
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Which option best describes recombinant DNA? Responses
a DNA from an organism that has been rearranged in a different order.
b DNA that has been modified by the removal of unwanted genes
c copies of DNA produced in a lab setting to mass produce proteins copies
d genetic material that incorporates DNA from multiple organisms
answer in a letter not in a long sentence explanation without telling which 1 is correct. pls do it fast 10 points
Answers
Answer: D
Explanation:
Answer: genetic material that incorporates DNA from multiple organisms.
Explanation: i took the test and got it right !
A company is growing algae in big tanks to make fish food. However, the algae is not growing very quickly, and they suspect either phosphorus, nitrogen, or iron is limiting. What could the company do to figure out which nutrient is limiting?a)Add phosphorus to one tank, nitrogen to another, and iron to a third, and see which treatment increases algal growth.b)Add phosphorus, iron, and nitrogen to all tanks, and see which nutrient increases algal growth.c)Add phosphorus to all tanks, because phosphorus is the nutrient that limits algal growth.d)Add nitrogen to all tanks, because nitrogen is the nutrient that limits algal growth.
Answers
Experiment
In this experiment, as the question the investigators are trying to answer is what component is the limiting one, it is necessary to test every one of them, independently. Therefore, the best option is to change the concentration of one of them and leave the rest unchanged. To accomplish this, would be necessary three different tanks, one for phosphorus, one for iron, and one for nitrogen (option A).
To determine which nutrient is limiting algal growth, the company can add phosphorus to one tank, nitrogen to another, and iron to a third, and see which treatment increases algal growth. Therefore, option A is correct.
By adding each nutrient separately to different tanks and observing the effects on algal growth, the company can identify which nutrient is limiting. If the addition of phosphorus to one tank leads to increased algal growth, it suggests that phosphorus was the limiting nutrient.
Similarly, if the addition of nitrogen or iron to their respective tanks results in increased algal growth, it indicates that nitrogen or iron, respectively, was the limiting nutrient. Thus, option A is correct.
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a rise in body temperature that occurs to destroy invading cells is a(n)
Answers
A rise in body temperature that occurs to destroy invading cells is a fever.
Fevers are a natural response of the body's immune system to fight off infections. When pathogens enter the body, the immune system releases chemicals called pyrogens that signal the hypothalamus in the brain to raise the body's temperature. This increase in temperature makes it difficult for the invading cells to survive and reproduce, giving the immune system a chance to fight off the infection.
Fevers can also stimulate the production of white blood cells, which play a crucial role in the immune response. It's important to note that while fevers can be uncomfortable, they are generally not harmful and are often a sign that the body is working to fight off an infection.
However, if a fever is accompanied by other severe symptoms, it's important to seek medical attention.
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How is multi cellularity advantages over increasing the mass of a single cell
Answers
Answer:
Multicellular organisms
hoped i helped
spraying with water to clear leaves off a porch is a good way to conserve water true or false
Answers
Answer: False
Explanation:
Spraying water to clear leaves off a porch is actually a waste of water. It is better to use a broom or a rake to sweep off the leaves, which will not only conserve water but also provide some physical activity.
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Answers
Answer:
c
Explanation:
Use the information below to answer the question that follows:
A horizontal bar chart depicting World War II military and civilian casualties for both Allied and Axis countries is shown. On the lower right, a pie graph shows the deaths of Allied civilians, Allied military, Axis civilians, and Axis military as a percentage of total WWII-related deaths. The Allied countries listed include the Soviet Union, China, Poland, Indonesia, India, Yugoslavia, French Indochina, France, United Kingdom, United States, Lithuania, Czechoslovakia, Greece, Burma, and Latvia. The Axis countries listed include Germany, Japan, Romania, Hungary, Italy, and other. Countries with at least two million military casualties include the Soviet Union (11 million), China (3.8 million), Germany (5.7 million), and Japan (2 million). Countries with less than one million military casualties include India (.1 million), Yugoslavia (.4 million), France (.2 million), the United Kingdom (.4 million), the United States (.4 million), Romania (.4 million), Hungary (.4 million), Italy (.4 million), and other (.4 million). Countries with more than one million civilian casualties include the Soviet Union (12.5 million), China (15.2 million), Poland (4.8 million), Indonesia (4 million), India (1.5 million), French Indochina (1 million), Germany (2 million), and other (1.2 million). Countries with less than one million civilian deaths include Yugoslavia (.6 million), France (.4 million), Lithuania (.3 million), Czechoslovakia (.3 million), Greece (.3 million), Burma (.2 million), Latvia (.1 million), Japan (.6 million), Romania (.4 million), Hungary (.2 million), and Italy (.1 million). The pie chart shows that Allied Civilian deaths were 58 percent of the all WWII deaths, Allied Military deaths were 25 percent, Axis Military deaths were 13 percent, and Axis civilian deaths were 4 percent.
Which of the following statements is supported by the information above?
Answers
D.) The Japanese suffered the greatest loss of life among the Axis powers. This is supported by the information that Japan had 2 million military casualties and .6 million civilian casualties, which is the highest among the Axis nations listed.
What is power?Power is the ability to exercise control or authority over someone or something. It is the capacity to influence the behavior of others and the outcomes of events. Power can be expressed in many forms, such as authority, influence, persuasion, or force. It can manifest in the form of physical, mental, or social energy, and is the foundation for the development of leadership. Power can be used for either positive or negative purposes, depending on the user's intentions. Power is often seen as an advantage, but it can also be a source of tension, conflict, and competition. Ultimately, power is necessary for social, economic, and political stability.
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Complete Question:
Use the information below to answer the question that follows:
A horizontal bar chart depicting World War II military and civilian casualties for both Allied and Axis countries is shown. On the lower right, a pie graph shows the deaths of Allied civilians, Allied military, Axis civilians, and Axis military as a percentage of total WWII-related deaths. The Allied countries listed include the Soviet Union, China, Poland, Indonesia, India, Yugoslavia, French Indochina, France, United Kingdom, United States, Lithuania, Czechoslovakia, Greece, Burma, and Latvia. The Axis countries listed include Germany, Japan, Romania, Hungary, Italy, and other. Countries with at least two million military casualties include the Soviet Union (11 million), China (3.8 million), Germany (5.7 million), and Japan (2 million). Countries with less than one million military casualties include India (.1 million), Yugoslavia (.4 million), France (.2 million), the United Kingdom (.4 million), the United States (.4 million), Romania (.4 million), Hungary (.4 million), Italy (.4 million), and other (.4 million). Countries with more than one million civilian casualties include the Soviet Union (12.5 million), China (15.2 million), Poland (4.8 million), Indonesia (4 million), India (1.5 million), French Indochina (1 million), Germany (2 million), and other (1.2 million). Countries with less than one million civilian deaths include Yugoslavia (.6 million), France (.4 million), Lithuania (.3 million), Czechoslovakia (.3 million), Greece (.3 million), Burma (.2 million), Latvia (.1 million), Japan (.6 million), Romania (.4 million), Hungary (.2 million), and Italy (.1 million). The pie chart shows that Allied Civilian deaths were 58 percent of the all WWII deaths, Allied Military deaths were 25 percent, Axis Military deaths were 13 percent, and Axis civilian deaths were 4 percent.
Which of the following statements is supported by the information above?
A.) There were more military deaths globally than civilian deaths.
B.) The Axis nations lost more people overall than the Allied nations.
C.) Poland lost the highest percentage of their country's population in the war.
D.) The Japanese suffered the greatest loss of life among the Axis powers.
how do plant cells obtain oxygen for respiration [worth 9 marks]
Answers
Answer:
As with photosynthesis, plants get oxygen from the air through the stomata. Respiration takes place in the mitochondria of the cell in the presence of oxygen, which is called "aerobic respiration".
Choose all that apply. What are the ways that heat can be transferred or moved?
A. Radiation
B. Redefinition
C. Conduction
O D. Convection
E. Reflection
F. Contradiction
Answers
Answer:
A, C, D
Explanation:
A, C, D
Answer:
A, C, and D are the 3 ways of heat transfer
For what type of organism is the carrying capacity shown?
Answers
Answer:
I'm pretty sure it's white tailed deer, since that's what the graph is describing and showing the carrying capacity for.
White tailed deer has the carrying capacity in the graph.
What is carrying capacity ?The carrying capacity of any organism can be defined as the maximum population size of the species in a sustainable environment indefinitely up to the limit no further growth.
Carrying means to support and Capacity refers to the ability to reproduce the maximum output, when population reaches the carrying capacity then the mortality will be greater than natality.
The importance of Carrying capacity is mainly based on concept of sustainability, environmental imbalances and Global warming is also causative agent, eradication of poverty and provision of the traditions, practices are also enhance the carrying capacity importance.
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After four half-lives of decay, what is the ratio of radioactive parent isotope to stable daughter isotope?
answer: 1:15
Answers
1:15 is the ratio of radioactive parent isotope to stable daughter isotope,
after four half-lives of decay.
Let:
'A' be the initial concentration of the radioactive parent isotope'n' be the number of corresponding half-lives'A/2ⁿ ' be the final concentration of the radioactive parent isotopeUsing the Exponential Decay Relation:
A → A/2ⁿ ( after 'n' half-lives )
A⁴ → A/2⁴
A⁴ → A/16
∵The final concentration of the radioactive parent isotope is A/16.
∴The initial concentration of the stable daughter isotope will be 15A/16.
1:15 is the ratio of radioactive parent isotope to stable daughter isotope,
after four half-lives of decay.
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A euglena is a unicellular organism. Choose an everyday object, such as a car, to use as a model of this euglena. Explain how the parts of the object model how the euglena's cell parts help it stay alive.
Answers
Answer:
a car:
Flagellum is a long thread-like structure that works as a navigator or a steering wheel in a car. The thin filament helps an euglena to move forward in any direction it desires.
Cell membrane is like the doors on a car. They regulate what goes in/out. The cell wall in a plant cell is like the frame on a car. The frame supports the car as the cell wall supports the plant.
The Nucleus is like the front seat of your car because the driver is in control of what the car does, goes, and what happens inside of the car.
Vacuoles is like the Trunk of your car because you store food, water and other wastes into your trunk, like were all the things go in the vacuoles.
The compression stroke in a car engine is like chloroplasts because it gas to fuel a car the same way chloroplasts convert solar energy in to chemical energy for a cell.
Mitochondrion is like the battery on a car. It gives the motor energy so it can run like the mitochondrion produces energy for the cell.
Eyespot is like a radio, because in some cars, radios pull power directly from the battery from the car battery, and this is why you will get the car radios on while the engine is off
Explanation:
The internal structures found in a typical photosynthetic Euglena are as follows:
Pellicle: A thin, flexible membrane that supports the plasma membrane and helps them to change shape
Plasma Membrane: The selectively permeable membrane that protects the inner content of the cell from the outside environment
Cytoplasm: A jelly-like substance distributed throughout the cell that contains all the cell organelles
Chloroplast: Contains the green pigment chlorophyll that helps them to produce food using sunlight by photosynthesis
Nucleus: A membrane-bound organelle that contains the genetic material, DNA. It also contains a distinct nucleolus that contains RNA and helps the cell to synthesize proteins
Mitochondria: The energy-producing organelle that forms ATP. All cellular activities such as movement and reproduction are performed using the mitochondrial energy source
Ribosomes: Consists of RNA and proteins, and are responsible for producing all cellular proteins
Golgi Apparatus: Manufactures, stores, and transports large molecules such as carbohydrates and proteins within the cell
Endoplasmic Reticulum: The extensive network of membranes that helps to package and transport proteins to different organelles. It is of two types: rough endoplasmic reticulum (RER) – containing ribosomes attached to it; and smooth endoplasmic reticulum (SER) – devoid of ribosomes
Lysosomes: Small membrane-bound organelles filled with hydrolytic enzymes that break down large molecules such as carbohydrates, fats, and proteins
Contractile Vacuole: It maintains the water and salt balance within the cell
Reservoir: The inward pocket present near the base of the flagella where contractile vacuole dispels excess water
Flagellum: A long whip-like structure attached externally to the cell body that helps in cell movement. An amoeba contains two flagella, a short one that does not protrude out of the cell, and a long one that helps in swimming
Eyespot: A region that is highly colored and contains red-colored carotenoid pigments that help in the detection of light. It is sometimes called a stigma
Photoreceptor: Also known as the paraflagellar body, it is the light-sensitive region located near the flagellum that helps to detect light. It also helps in their movement towards and away from light stimuli, a process known as phototaxis
Paramylon: They are stored starch-like carbohydrate granules composed of glucose produced during photosynthesis. Paramylon enables the organism to survive in low-light conditions when photosynthesis is not possible by acting as the food reserve for the cell. When the paramylon is enclosed in a sheath of polysaccharide, it is called the paramylon sheath of pyrenoid.
The flagellum of euglena, can be compared to the wheels of a car, as they are responsible for the movement of both.
What is Euglena?Euglena is a genus of single-celled flagellated algae that can occur either as free cells or in colony form.
What is flagellum?Euglenophytes have the presence of flagella as their main characteristic. They have two flagella, one longer than the other. The smaller flagellum does not emerge from the cell. The larger one is mainly used for locomotion.
With this information we can conclude that euglena has flagella for locomotion just as cars have wheels for locomotion.
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Select the stabilizing factors that hold the two strands of DNA together in a double helix. hydrogen bonding covalent bonding base stacking hydrophobic interactions ionic bonding
Answers
The two strands of DNA in a double helix are held together by hydrogen bonding between the nitrogenous bases. Here option A is the correct answer.
Adenine in one strand pairs with thymine in the other strand, while cytosine in one strand pairs with guanine in the other strand. These hydrogen bonds hold the two strands of DNA together and maintain the double-stranded structure of the molecule.
The stability of the hydrogen bonds is influenced by the base stacking hydrophobic interactions between the adjacent nitrogenous bases in the DNA molecule.
The hydrogen bonds between the nitrogenous bases are weak bonds, but they are strong enough to hold the two strands of DNA together and maintain the double-helix structure of the molecule.
Complete question:
Select the stabilizing factors that hold the two strands of DNA together in a double helix.
A - hydrogen bonding
B - covalent bonding
C - base stacking hydrophobic interactions
D - ionic bonding
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What is the ultimate nature of reality, and can it be fully comprehended by human intelligence?
Answers
Answer:
The ultimate nature of reality is a complex and debated philosophical question, with different schools of thought providing different answers. There is no consensus on whether the human mind can fully comprehend the ultimate nature of reality.
SC.6.P.11.1 n s 11. Which of the following describes the law of conservation of energy? A. Energy cannot be created or destroyed. B. Energy can only be released through transformation. C. When energy is conserved, it always changes form. D. Energy increases when it is transferred from one object to another. n.
Answers
Answer:
A. Energy cannot be created or destroyed
Explanation:
I answered the closest to the correct choice
Food Web Crossword puzzle
Across
3. Organisms that eat both
meat and plants
5, Plants make their food by
a process of
9 Gets hunted
10. A decomposer is an
insect, fungus, or bacteria
that breaks animals or plants
that are
12. /prey
13. Producer/
#rugivore
heterotroph
15. Organisms that eat only
seeds
16. Organisms that find and
éat dead meat
17. Start of the food web
19. Organisms that eat only
fruit
20. Organism who cant feed
themselves
Down
1. Organisms that eat only
wood
2. Organisms that can feed
themselves
4. Energy being transfered
to other organisms
6. Animals who only eat
plants
7 Top of the food webs
8. Organisms that only eat
nectar
11, To show the relationship
in an ecosystem
14. A type of decomposer
18. Animals that eat leaves
Answers
Food Web Crossword puzzle responses are:
Across:
OmnivoresPhotosynthesisPreyDeadPredatorAutotrophFungiGranivoresScavengersSunFrugivoresParasiteDown:
XylophagesAutotrophsTrophic transferHerbivoresApex predatorsNectarivoresEcosystem diagramSaprotrophsFolivoresWhat is the Food Web?Omnivores - Living beings that eat both meat and plants. Photosynthesis - Plants make their nourishment by a handle of photosynthesis.
A decomposer is an creepy crawly, organism, or microscopic organisms that breaks down creatures or plants that are dead. Prey - Living beings that are chased by predators.
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Consider the following two statements about succession.
Student 1:
Matthew - As succession begins, communities tend to be dominated by mostly K-selected species. As succession continues, r-selected species tend to compete better and therefore become more and more common.
Student 2:
Iman - As succession begins, communities tend to be dominated by mostly r-selected species. As succession continues, K-selected species tend to compete better and therefore become more and more common.
Which student is correct?
a. Provide a rationale for your answer (2 marks)
b. Provide a specific example of succession which includes at least one example of an r-selected and one example of a K-selected species. (1 mark)
Note - No marks are earned by simply agreeing with either Matthew or Iman
Answers
What happens to a lion’s energy costs after a failed hunt?
Answers
Answer:
it wasted burned out
Explanation:
Answer:
Explanation:
They have to return empty handed and get the energy to do it again.
I NEED HELP ASAP ASAP ASAP
Match the term to its description.
Answers
Answer:
Hmm I can try to help :3
Elliptical galaxy: A
Galaxy: D
Irregular galaxy: B
Spiral galaxy: C
Explanation:
:3
Answer:
Irregular galaxy- B
Galaxy- D
Spiral galaxy- C
Elliptical galaxy- A
Explanation:
What is an enzyme binding site?.
Answers
Because it comprises amino acids that both bind the substrate and help in its conversion into product, the binding region on enzymes is sometimes referred to as the active site. By looking at a protein's name, you can frequently tell if it is an enzyme.
A enzyme binding site is a location on a macromolecule, such as a protein, that specifically interacts to another molecule in biochemistry and molecular biology in enzyme. A ligand is a common name for the macromolecule's binding partner.
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Mendelian inheritance states that traits are determined when offspring receive
for each trait from
.
Answers
Mendelian inheritance states that traits are determined when offspring receive one allele for each trait from each parent.
Mendelian inheritance, named after the Austrian monk Gregor Mendel, explains how traits are passed on from parents to offspring. The basic principle of Mendelian inheritance is that traits are determined by the inheritance of alleles, which are different forms of a gene.
1. Alleles: Genes exist in pairs, with one allele inherited from each parent. These alleles can be either dominant or recessive. Dominant alleles exert their effects even if only one copy is present, while recessive alleles require two copies to be expressed.
2. Gamete Formation: When an organism produces gametes (sperm or eggs), it undergoes a process called meiosis. During meiosis, the pairs of alleles separate, so that each gamete receives only one allele for each trait.
3. Fertilization: When two gametes (one from each parent) combine during fertilization, the resulting offspring inherits one allele for each trait from each parent. This is why offspring typically exhibit a combination of traits from both parents.
4. Punnett Square: To predict the possible combinations of alleles in offspring, a Punnett square can be used. This is a grid that helps determine the probability of different genotypes and phenotypes.
5. Dominant and Recessive Traits: If a dominant allele is present, it will be expressed in the offspring's phenotype. However, if both alleles are recessive, the recessive trait will be expressed.
Overall, Mendelian inheritance provides a framework for understanding how traits are inherited and passed down from one generation to the next through the transmission of alleles from each parent.
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what does it mean for a population to be in hardy-weinberg equilibrium? multiple choice allele frequencies in the population are occurring over time. evolution is occurring in the population. there are no changes in gene frequencies from one generation to the next. natural selection is occuring and selecting a particular phenotype in the population.
Answers
Absent unsettling circumstances, the genetic variety in a population will remain stable from one generation to the next.
Quiz: What does the phrase "Hardy-Weinberg equilibrium" signify in terms of population dynamics?Unless certain perturbations take place, both genotype and allele frequencies in a population remain constant from generation to generation. This condition is known as Hardy-Weinberg equilibrium.
When a population is at equilibrium, what does that mean?A population is said to be in genetic equilibrium when there is no evolution within it. In other words, allele frequency (gene variants) does not change over successive generations. In a genetic equilibrium, the gene or allele frequencies remain constant.
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HELP PLS ALL QUESTIONS GIVING BRAINLIEST!
Answers
Answer:
Explanation:
Diagram included below.
1.) 4 chromosomes. Daughter cells are not identical due to recombination (i.e. crossing over).
1.) 2n=4
2.) Cells produced by meiosis are haploid. With just one chromatid.
Explain: Meiosis I separation of homologous chromosomes but sister chromatids stay together. Meiosis II sister chromatids separate, making haploid cells with non duplicated chromosomes.
3.) Germ cells have 46 chromosomes. Gametes have 23.
4.) Meiosis occurs in testes for men and ovaries for women. Mitosis occurs everywhere, basically any cell that isn't a reproductive cell.
5.) Recombination, genetic information is randomly shuffled. Events like crossing and the random orientation of homologue pairs make the possibilities endless. Remember sperm only gets half of the man's DNA, which half is random.
6.) After fertilization you get chromosomes from both mom and dad. The two haploid cells fuse and make a diploid cell.
wht are the examples of how the biosphere affect the other spheres
Answers
Answer:
The biosphere interacts with the lithosphere by shaping it. All of the Spheres interact with one another, you also get carbon dioxide which is released into the atmosphere by some of the things in the biosphere like animals and humans. The hydrosphere provides water and rain for the biosphere.
Explanation: I hope this helps!
can you help me with that please?
Answers
The most likely outcome resulting from the finches' beak structure adaptations is (option C) increased competition among finches.
What is adaptations?Adaptation refers to the process by which living organisms change or adjust their physical, behavioral, or physiological characteristics in response to changes in their environment, in order to improve their chances of survival and reproduction.
Adaptations can be structural, such as changes in an organism's anatomy, such as the shape of its beak or the color of its skin; functional, such as modifications in an organism's physiological processes, such as the ability to regulate body temperature or digest certain types of food; or behavioral, such as changes in an organism's actions or habits, such as migration patterns or hunting strategies.
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e
Using the cell-as-a-city
analogy, what is a vacuole?
A. A power plant because it produces
energy for the cell.
B. A warehouse because it stores nutrients
and water.
C. Waste management because it helps the
cell get rid of waste.
Answers
A vacuole is waste management because it helps the cell get rid of waste. The correct option is C.
What is a vacuole?A membrane-bound cell organelle known as a vacuole. Animal cells typically have tiny vacuoles that aid in the sequestration of waste. Vacuoles in plant cells aid in preserving the equilibrium of water.
Maintaining cell acidity and turgor pressure, controlling the storage and movement of substances, regulating the transport and localization of crucial proteins.
These are done through the endocytic and lysosomal-vacuolar transport pathways, and responding to biotic and abiotic stresses are among the primary roles of vacuoles.
Thus, the correct option is C.
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