Answer:
A
Explanation:
it will increase with a 4:1 ratio
As per the given scenario, the allele frequency will increase towards R allele. The correct option is A.
What is allele frequency?The number of times the allele of interest is observed in a population is divided by the overall number of copies of all the alleles at that particular genetic locus in the population to calculate the allele frequency.
In the given scenario, as group of the frogs moves to an island off the mainland, the allele frequency of R will increase.
Thus, the correct option is A.
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Based on the reactivity of catalase in the enzyme concentration lab, do your results in testing enzyme concentration support your hypothesis?
There were more substrate molecules to bond with the active site of the catalase enzyme as the substrate concentration increased.
What is an enzyme?The enzymes are the chemical molecules that alter the chemical reaction when added in a specific amount, it either increases the reaction, or decrease it.
There were more substrate molecules to bond with the active site of the catalase enzyme as the substrate concentration increased.
Because the substrate concentration increased each time, there was a greater chance that the substrate would bind to the active site and carry out the reaction.
Thus, this way the enzyme concentration affects the reactivity.
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Diego is conducting an experiment to investigate how temperature affects chemical change. He has three pieces of cheese that he just bought from the store. He left one piece of cheese outside, one on the kitchen counter, and one in the refrigerator. His prediction is that the piece in the refrigerator will not mold, the one on the counter will mold a little, and the one outside will mold a lot. Select the conclusion The piece of cheese in the refrigerator had the most amount of chemical change. The piece of cheese on the counter had the most amount of chemical change. The piece of cheese in the refrigerator had the least amount of chemical change. The piece of cheese outside had the least amount of chemical change.
The piece of cheese in the refrigerator had the least amount of chemical change.
Moulding occurs on substances which are warm and moistMold thrives in warm and humid placesIn refrigerators, the environment is cool and dryThis environment hinders the growth of moldThe bacteria and fungi require optimum temperatures to flourish, which is not present in a refrigeratorThe cheese placed outside and on the counter will grow mold as those environments do not arrest the growth of moldRefrigeration ensures that food is not spoiltTherefore, the least amount of chemical change takes place on the cheese placed in the refrigerator.
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which graph represents a species that has a smaller gestation and maturation period, smaller number of offspring, and little or no paternal care?
The graph containing r selected species such as rodents and insects will represent a species that has a smaller gestation.
What is R selected species?These type of organisms have a high reproductive rate because of the smaller gestation and maturation period.
They also have smaller number of offspring with little or no paternal care as they are able to take care of themselves.
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1. Ms. L's symptoms include shortness of breath, a chronic cough productive of thick mucus,
and a "chest cold" of 2 months' duration. She was advised to quit smoking, a major cause of
lung irritation. These symptoms were caused in part by the obstruction of groups of alveoli
by mucous plugs. Ms. L was told that the mucus is not moving normally out of her airways
because the toxins in cigarette smoke paralyze small cell extensions that beat to create an up-
ward current. These extensions are called
The small cell extensions that beat to create an up-ward current are called microvilli.
What are microvilli?Microvilli are small extensions which are found on the surface of the alveoli of the lungs.
The microvilli play an important role in the lungs as the help to remove particles and mucus that may obstruct the lungs as a result of the upward current they create in the lungs from their beating motion.
Therefore, the paralyzed small cell extensions that beat to create an up-ward current are called microvilli.
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Which of these has not been used as an RNA probe?
a. Fluorescence probes
b. Radioactive probes
c. Non- radioactive
d. Cellular probes
Answer:
I think the answer is Cellular Probes.
Explanation:
I hope this helps! Correct me if I am wrong.
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The process of accumulating higher and higher amounts of a toxic material such as mercury or PCBS within the body of any animals is called?
1. biological resistance
2. biological half-life
3. bioaccumulation
4. biological demagnification
Answer:
Bioaccumulation
Explanation:
Bioaccumulation is the of accumulation of harmful chemicals.
What happens at the end of the dark reactions?
Answer: Glucose is the end product of the dark reaction.
Explanation:
How many feedback loops are possible in a food web of 20 species?
What are Interphase, prophase I, metaphase I, anaphase I, telophase I, prophase Il, metaphase II, anaphase II, telophase Il in meiosis.
The stages of meiosis 1 and meiosis 2 is discussed below:
What is meiosis?Eukaryotic cells (plants, animals, and fungi) reproduce sexually through a process called meiosis. Chromosome reduction is the process by which haploid cells are created from diploid cells, which are cells with two complete and identical sets of chromosomes.
The number of chromosomes in each cell is halved during meiosis I, which starts with one diploid parent cell and ends with two haploid daughter cells.
Maintaining the number of chromosomes in each cell, meiosis II begins with two haploid parent cells and finishes with four haploid daughter cells. Before meiosis II, homologous pairs of cells divide into chromosomes while in meiosis I.
These chromosomes are further divided into sister chromatids during meiosis II. Meiosis II does not include genetic material crossing across or recombining between chromosomal pairs, whereas meiosis I do.
This happen in the prophase contains five subphases and is lengthy and complex during meiosis I. The equatorial plane in meiosis II is aligned 90 degrees differently than in meiosis.
Therefore interphase1, prophase 1, metaphase 1, anaphase, and telophase 1 are the stages of meiosis 1 and prophase Il, metaphase II, anaphase II, and telophase Il in meiosis 2.
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Define Evolution and Natural Selection
Which of these best describes a hormone?
A. A chain of amino acids secreted by a gland
B. A neurotransmitter with a specific target
C. A neurotransmitter carried in the blood
D. A chemical message secreted by a gland
Answer:
option D
A chemical message secreted by a gland.
Explaination: A hormone is a chemical that is made by specialist cells, usually within an endocrine gland, and it is released into the bloodstream to send a message to another part of the body. It is often referred to as a 'chemical messenger'.
1. The words rotate and revolve have the same meaning when describing the motion of planets.
a. True
b. False
Answer:
False
Revolution:
The movement of the Earth around the Sun, once every 365.25 days is called a revolution.
Rotation:
The movement of the Earth as it takes 24 hours to spin on its axis is called a rotation.
Which function involves the circulatory system working with the respiratory system?
A. Lowering body temperature
B. Enabling cellular respiration
C. Stopping bacterial infection
D. Maintaining liver function
The function involves the circulatory system working with the respiratory system is Enabling cellular respiration. Thus, option "B" is correct.
What are circulatory and Respiratory system?Respiratory system is a set of organs which help in the exchange of gases in the body. They bring oxygen from outside into the body and release carbon dioxide from inside the body to the outside world. The exchange of the gases takes place at the alveolar site (or gills in aquatic animals).
The circulatory system then carries this oxygen (mixed in blood) from gas exchange site to all the cells of the body. In addition, it also brings carbon dioxide (waste product of cellular respiration) from all the cells to the gas exchange site (respiratory system).
Thus, option "B" is correct.
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1. Which human traits form a wide range of states instead of two distinct states?
A) cleft chin
B) eye color
C) widow's peak
D) fully attached earlobes
2. Don's earlobes are fully attached, Both of his parents have free earlobes (not fully attached). One of Don's grandparents has fully attached earlobes, like he does.
What can be said about fully attached earlobes?
A) Fully attached earlobes are dominant. Both of Don's parents do not have them
B) Fully attached earlobes are recessive. Both of Don's parents have them.
C) Fully attached earlobes are dominant. They skip a generation in inheritance.
D) Fully attached earlobes are recessive. They skip a generation in inheritance.
3. A scientist is doing experiments using some ancient seeds discovered in an ancient temple.
Which option is a prediction that relates the outcome of the scientist's experiments with probability?
A) The scientist thinks that the seeds were in the temple as part of a ritual.
B) The scientist thinks that more seeds can be recovered from other similar locations on Earth.
C) The scientist thinks that seeds that are old have 0% chance of sprouting; so, if they do, they must be modern.
D) The scientist thinks that if conditions are good, about 10% of the seeds will sprout and grow into plants
4. Which option describes how genes control the traits of a cell?
A) Genes code for specific structures and molecules in a cell. Those structures and molecules form the traits of the cell.
B) Genes become building blocks for specific structures and molecules in a cell. Those structures and molecules farm the traits of the cell.
C) Genes determine how much energy goes to each organelle in the cell. The organelles form the traits of the cell.
D) Genes are molecules that organelles are made out of. Once assembled into organelles, they form the traits of the cell.
Explanation:
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The human eye color is a trait which forms a wide range of states instead of two distinct states. Fully attached earlobes is a recessive trait which is seen in a very rare cases. Thus, the correct options are 1 (B), 2 (D), 3 (D), and 4 (A).
What are traits?Traits are the characters which are controlled by the genes. Genes are present on the DNA molecule which encodes for different proteins which are responsible for the traits or phenotypic characters of an organism.
Quantitative traits are the traits for which the phenotypic variation is continuously distributed in the populations, with the variation in population often approximating the normal distribution on an appropriate scale. The human eye color is an example of quantitative trait which is controlled by different genes.
Recessive traits are the traits which are seen very rarely as these are only shown when present in homozygous condition. These traits are seen to skip generations as seen in the case of fully attached earlobes.
When a scientist is doing experiments using the ancient seeds which he discovered in an ancient temple, the scientist thinks that if the optimum conditions are provided to the seeds then about 10% of the seeds will sprout and therefore grow into plants.
Genes are the parts of the DNA which are responsible for encoding proteins. These proteins controls the phenotypic characters of an individual.
Therefore, the correct options are 1 (B), 2 (D), 3 (D), and 4 (A).
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The offspring of a black cat and a white cat is a gray cat. It has the genotype BW. B is black and W is white.
If a black cat mates with a gray cat, the chance the offspring will be white is
percent.
When a black cat (BB) mates with a gray cat (BW), the chance the offspring will be white is 0% (zero).
What is Genotype?Genotype may be defined as the ultimate combination of alleles of those genes which are selected for specific studies.
When a black cat (BB) mates with a gray cat (BW), it produces offspring with the genotypes BB, BW, BB, and BW. None of them are WW (white).
The Punnett square of the given cross is illustrated below:
Therefore, it is well described above.
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The release of greenhouse gases from one state can enter another state due to atmospheric circulation. If there is a problem between states, what do you think would be the best way to handle this problem???
Due to atmospheric circulation, the greenhouse gases can enter from one state to another state. These changes are caused by extra heat in the climate system due to the addition of greenhouse gases to the atmosphere.
What are the ways to handle greenhouse effect?The Earth's radiated energy is trapped by greenhouse gases such carbon dioxide, methane, nitrous oxide, and some manmade compounds, which keeps heat in the atmosphere.
The best way to handle this problem are:
Fossil fuels should remain underground.Switch to electric vehicles fast.Make the world's energy supply renewable.Double the extent of forest and rehabilitate habitats.Stop supporting fossil fuels abroad.Learn more about greenhouse gases here:
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Question 2
If purple flowers are dominant to white flowers. What are the possible genotypes of an organism with a purple phenotype?
Your answer:
O Pp. pp, PP
O PP, PP
0
PP
Pn
Answer:
Pp, PP
Explanation:
Purple: P
White: p
Purple flowers can still carry the white flower trait, that's how their offspring gets it. Since this offspring is purple, the dominant trait is present and will always show over the recessive trait. So of you get a purple flower the possible genotypes are PP and Pp, if you have a white flower the possible genotypes are only pp. :)
Type the correct answer in the box. Spell all words correctly.
What does the scientific method help test in environmental science?
The scientific method is a way to test a
and gain a better understanding of the world.
The scientific method is a way to test a hypothesis and gain a better understanding of the world.
What is the scientific method?The scientific method is a process used to explore observations and answer questions.
The usual process involves making conjectures -that would be the hypotheses-, drawing predictions resulting from a logical consequence, and carrying out experiments based on those predictions.
The ultimate goal is to test a scientific hypothesis.
Thus, this could be the answer.
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One of the primary concepts of biology is natural selection which is based on the principle of an organism s ability to adapt to their surrounding environment. This concept also applies to all life on Earth, and it is certainly applicable to people in the workplace as well.
Thinking futuristic, to when you will have established your unique niche in the medical field, what traits do you possess that will give you the ability to adapt and thrive within your workplace environment?
Answer:
I think the traits you possess that will give you the ability to adapt and thrive in your workplace environment depends on your passion and skill for medicine and able to collaborate with colleagues. Hope it helps!
Describe artificial selection, and explain how it is different from natural selection.
Answer:
Starting with natural selection, the most robust and most intelligent animals survive over the weakest. The weak animals eventually die off because they can't keep up with nature. Artificial selection isn't natural; certain species are being targeted on purpose and decide whether to stay alive or not. At this point, it is not at all about whether the species can survive or not because it's most likely being protected.
Given the following crosses give the outcome. What can be the blood types of their children.
Type AB blood x type 0 blood
Answer:
For this question, you have to draw a punnet square
Explanation:
A B
i Ai Bi
i Ai Bi
For AB blood type, one parent can give either an A or a B. For the other parent because they are 0 blood type that means that they are negative for both factors.
For someone who would be A, they could be AA or Ai( but that is irrelevant for this question)
The i reffers to no antigen markers, it is kind of just a placeholder. You could have written (O,O) instead
The area around a pond is cooler than the rest of the forest. Which term describes the area around the pond?
The term microclimate best describes the area around the pond.
What is Pond?A pond may be defined as an aquatic habitat which is a tiny body of still water originated naturally or by artificial norms. It is usually smaller than a lake.
A microclimate may be defined as a climate of a small area or a distinct place within a location as distinguished from the surroundings of the complete area.
A microclimate usually involves a very smaller area in contrast to determining the climate of a particular location.
The complete question is as follows:
The area around the pond is cooler than the rest of the forest. Which term describes the area around the pond?
BiomeMicroclimateMacroclimateTherefore, the correct option for this question is B, i.e. microclimate.
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Which of the following organelles is common to both prokaryotic and eukaryotic cells?
A.
Cytoskeleton
B.
Nucleus
C.
Nucl
Answer:
A) Cytoskeleton
Explanation:
The cytoskeleton is a network of fibers extending through the cytoplasm that provides. mechanical support and maintains the cell's shape.
Please put the letters by the number :))
Answer:
1 - e
2 - c
3 - a
4 - d
5 - b
Explanation:
Chlorophyll is found in the thylakoid which are found in chloroplast
Type your response in the box.
Cell theory states that all living things contain one or more cells. Why do you think cell theory meets the definition of
a scientific theory? Do you think it should be a scientific law? Explain your response.
Answer:
In biology, cell theory is the historic scientific theory, now universally accepted, that living organisms are made up of cells
What is Animalia Kingdom
[tex]{\huge \underline{{ \fbox \color{red}{A}}{\fbox \color{green}{n}}{\fbox \color{purple}{s}}{\fbox \color{brown}{w}}{\fbox \color{yellow}{e}}{\fbox \color{gray}{r } }}}[/tex]
It is composed of multicellular, eukaryotic, heterotrophic, aerobic, and immotile organisms that reproduce through spores, either sexually or asexually.
I hope I've helped : )
Answer:It is composed of multicellular, eukaryotic, heterotrophic, aerobic, and immotile organisms that reproduce through spores, either sexually or asexually.Explanation:
[tex]\sf XD [/tex]
Explain why there are fewer organisms at higher trophic levels.
Answer:
As we move to higher Trophic levels, we will, generally speaking, see larger animals. And yet, moving to higher trophic levels, these larger animals need to live on smaller energy production from the next trophic level down. As a result, there will usually be fewer animals at higher trophic levels.
Explanation:
Which brain regions were removed during H.M.’s surgery? Select all that apply
- amygdala
-hippocampus
-medial temporal lobe
-cerebellum
-basal ganglia
Answer:
hippocampusmedial temporal lobeMacrolides generally have bacteriostatic and bacteriocidal activity?
1.true
2.false
Macrolides generally have bacteriostatic and bacteriocidal activity?
A. TrueB. False
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