Answer:
a. Directional selection favors one end of the phenotype distribution, whereas
stabilizing selection favors intermediate over extreme phenotypes
Explanation:
Directional selection is called directional because it favors one phenotype over another, and stabilizing selection finds a balance between phenotypes.
Directional selection differs from stabilized selection in that it prioritizes one end of the phenotypic distribution, but stabilized selection prioritizes the middle over extreme phenotypes.
What is phenotype selection stabilization?The stabilized choice is the opposite of a destructive choice. Prefer intermediate varieties rather than individuals with extreme phenotypes. Stabilization of choice tends to remove more serious phenotypes and results in reproductive success of standard or average phenotypes.
What is an example of a stabilization choice?Stabilization of selection If the evolutionary pressure selects for two extremes of the trait, the population experiences stabilization of selection. For example, plant height can be affected by stabilizing choices. Plants that are too small may not be able to compete with other plants for sunlight.
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find the meaning of ductile
Answer:
Ductility is usually defined as the extent to which a material can be deformed plastically and measured in uniaxial tension.
Explanation:
Approximately what percent of the oxygen on Earth is produced through
photosynthesis?
Answer:
50-85%
Explanation:
The theory of evolution provides an explanation for how organisms have changed over time. Which of the following best supports
the theory of evolution?
OA. Many diverse species share genetic similarities.
OB. All modern species have very different genetics from one another.
OC. Most related species do not share genetic similarities.
OD. All modern species are genetically identical.
Answer:
A
Explanation:
PLEASE HURRY!!!!
When you have corresponding DNA sequences that comes from separate parents; one
from the mother and the other coming from the father... these are called _______________
That is why we have a pair for each chromosome.
Some people cannot digest milk products because they lack an enzyme to break down lactose in milk.
Which enzyme is it?
A. hydroxylase
C. maltase
B. Lactase
D. peroxisomes
Answer:
Lactase
Explanation:
What was your initial reaction to this picture
My eyes feel blessed, I want to pet him. He seem pretty chill
What does this pyramid tell us about the population?
The population is growing.
The population is stationary.
The population is declining.
Answer:
Explanation:
the population is stationary
Answer:
The population is declining.
Explanation:
I just took the test its not staionary
Diabetes is a disease characterized by the inability to break down sugars. Often a person with diabetes has a defective DNA sequence that messes up the code for making insulin. Suppose a person has a mutation in their DNA, and the first triplet for the gene encoding insulin is CCC (instead of CCA). Determine what amino acid the new DNA triplet codes
Answer:
The new CCC codon codes for proline, while the original CCA codon also encodes for proline
Explanation:
A synonymous substitution is a mutation produced by the substitution of one nucleotide for another in an exonic gene segment which doesn't modify the original amino acid in the protein sequence. Moreover, a silent mutation is any alteration in the nucleotide sequence that does not produce an observable effect on the organism's phenotype. The example above describes a synonymous substitution because the new codon (CCC) also codes for the same proline amino acid as the original non-mutated codon, thereby the resulting protein sequence remains unchanged. Consequently, in this case, mutations associated with diabetes are located at other gene regions. The genetic code is degenerate because different codons can code for the same amino acid.
please pick the right option
Compare adaptation and fitness
Answer:
Explanation:
An adaptation is a trait an organism has to make it better suited for the enviorment
Fitness, however is the measure of how many offspring an organism can produce and this depends on these individuals having these sucessful adaptations.
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Answer:
They have lungs.
Explanation:
Reptiles that are currently living have lungs means they breathe through their lungs not like fishes which breathe through gills. They have dry skin and have scales on their skin. Snakes, lizards, turtles are the examples of reptiles. Some reptiles such as sea turtles and penguins are also lives in water, but they come onto land to lay their eggs and comes to the surface breathing.
Can someone help me please, I just want to understand how to do it
Please help :(
Imagine yourself as a naturalist. In your travels, you observe the toad and frog
shown here. Write two questions that might arise from these observations.
Answer:
1. What is the relationship between body shape and the habitat where they are most commonly found?
2. What is the difference between toads having a thicker skin than frogs?
Explanation:
Toads and frogs are amphibians that belong to the same family, live in lakes, rivers and wetlands and have some similar characteristics. Among their main differences are:
The skin of toads is rougher, drier and rougher. While frog skin is moist and smooth. Frogs live in humid areas, although they can go out to dry land for food. Whereas toads can survive longer on the ground away from moisture, as they have greater water control in the body. Frogs are characterized by long limbs that favor long hopping and swimming. On the other hand, toads have shorter legs. Toads tend to be more rounded, muscular and stocky. Frogs tend to be more slender.Most toads are poisonous. In contrast in frogs, not all species are poisonous.
Given these observations, two questions that may arise could be:
1. What is the relationship between body shape and the habitat where they are most commonly found? This is that frogs have longer legs which helps them to swim and that is why they are more commonly found in water. While toads have shorter legs that even allow them to burrow into the ground, they can survive longer on land.
2. What is the difference between toads having a thicker skin than frogs? Toads have thicker and more impermeable skin than frogs, which allows them to live in drier places. Also, the blood of the toad is of higher osmotic concentration than water.
Answer: what is the difference between the body’s and the habitat they are in?
Explanation:both have similar habitats and look the same
A mother and father both have brown eyes, but their child has blue eyes. Which statement most likely explains this
Answer:
Blue eyes is a recessive trait
Explanation:
Recessive traits show in 25% of the offspring, but they skip the first generation. This means that the 25% only shows up in the second generation unless two recessive traits are put together. A likely combination is that both of the parents had Bb, which you can put into a punnet square to visualize.
B b
B BB Bb
b Bb bb90
Which of the following organisms would contain prokaryotic cells?
A. protists
B.animals
C.plants
D.bacteria
D
can I get the brain name thingy
A tick feeding on a human is an example of
Answer:
This would be a parasitism.
Explanation:
This is where one side benefits and the other is hurt.
Describe how the conservation of matter and energy is applied to stellar formation. In your answer discuss the early components of stars and what happens at the end of stellar lifecycles. Think about the matter in a star and what happens to it.
Answer:
Explanation:
After chemical weathering, what happens to the chemical makeup of the weathered rock?
-The rock stays the same
-The rock gets larger.
-The rock changes form.
-The rock disappears.
Answer:
rock changes its form
Explanation:
Hope was helpful
If yes than plz ❤️
After chemical weathering, the rock changes form. Therefore, option C is correct.
What are weathering and its types?The breakdown or dissolution of rocks and minerals on the surface of the Earth is known as weathering. Once a rock has been disintegrated, the minerals and rock fragments are carried away by a process known as erosion. Weathering and erosion can be caused by water, acids, salt, plants, animals, and temperature changes.
Because it contributes to the formation of numerous different types of landforms on the surface of the earth, weathering is a crucial activity. For instance, weathering is the process that gives rise to mountains, canyons, and caves.
There are three types of weathering and that is physical, chemical, and biological weathering. After chemical weathering, the rock changes form. Therefore, option C is correct.
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w, use what you have learned about heredity to complete the chart below. The allele pairs in the left column represent eye color in fruit flies. Ris the
ominant color (red), and r is the recessive color (white). Study the chart and fill in the missing phenotypes.
Answer:
RR is hom0zygous dominant and will Red
Rr is heterosygous and will also be red
rr is hom0zygous recessive and will be white
Explanation:
The filling of the chart with respect to the genotype given is as follows:
RR (homozygous dominant) gives Red eye color in fruit flies. Rr (heterozygous) will also deliver red eye color in fruit flies.rr (homozygous recessive) gives white eye color in fruit flies. What is meant by Genotype?Genotype may be defined as the ultimate combination of alleles of those genes which are selected for specific study in order to deliver some sort of genetic information.
As it is an organism is its complete set of genetic material. These can also be utilized in order to refer to the alleles or variants an individual carries in a particular gene or genetic location.
In fruit flies, red eye color is dominant over white eye color. So, when red eyed-colored (RR) flies are crossed with white-eyed colored flies (rr), they produce offspring with the genotype Rr and phenotype of red-eye color. This all deals with the law of dominance.
Therefore, the filling of the chart with respect to the genotype given is well described above.
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What are the possible results of breeding a dark brown mouse with a light brown mouse?
Do producers in an ecosystem transfer all their energy to first-level consumers?
Answer:
Producers in an ecosystem transfer all their energy to primary-level consumers. Organisms at higher trophic levels tend to be fewer in number than those at lower trophic levels. ... The lowest trophic level of any ecosystem is the producers.
What structure of nerve cells (neurons)
allows for communication throughout the
body?
Answer:
While neurons have a lot in common with other types of cells, they're structurally and functionally unique. Specialized projections called axons allow neurons to transmit electrical and chemical signals to other cells. Neurons can also receive these signals via rootlike extensions known as dendrites.
Explanation:
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What is a dichotomous key
Answer:
A dichotomous key is a tool that allows the user to determine the identity of items in the natural world, such as trees, wildflowers, mammals, reptiles, rocks, and fish. Keys consist of a series of choices that lead the user to the correct name of a given item. "Dichotomous" means "divided into two parts"
Explanation:
if fossils are in many different places, but only lived for a short period of time what are they considered
Answer:
index fossils
Explanation:
Answer: An ideal index fossil
Explanation: An ideal index fossil lived during a short period of time, was geographically and environmentally widespread, and is easy to identify. Some of the most useful index fossils are hard-shelled organisms that were once part of the marine plankton.
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DNA is used to tell people apart. What aspects of DNA do you think make this possible?
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Answer:
Kindly refer to the attachment.Thank U,NExt
DNA can be used to tell people apart - their DNA sequences or the lengths of repeated regions of DNA
Deoxyribonucleic acid (DNA) is a molecule that contains the biological instructions that make each species unique.
DNA contains genetic information that is passed from adult organisms to their offspring during reproduction.Each offspring forms by the combination of the parent's gene or DNAThe actual sequence of DNA on each of the chromosomes is unique due in part to recombination.recombination causes genetic variation and made everyone unique.This is incorporated in the nucleotide sequences in DNA molecules.Thus, DNA can be used to tell people apart - their DNA sequences or the lengths of repeated regions of DNA
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What is the purpose of the part of the female reproductive system highlighted
below?
O A. Developing a fetus
B. Collecting sperm
C. Storing eggs
D. Transporting eggs
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Answer:
the picture isnt really clear but i guess B
Explanation:
just to explain the collecting of sperm happens in the oviduct
the developing of a fetus happens in the uterus
The female reproductive system includes the glands and organs that produce the female gamete, the egg. The highlighted part in the diagram stores eggs. Thus, option C is correct.
What are the parts of the female reproductive system?The female reproductive system has various organs like ovaries, fallopian tubes, vagina, uterus, accessory, and other external organs. They are involved in the production and storage of eggs or the ovum.
The ovaries are the main organs that are two in number and oval-shaped structures, located on either side of the uterus, and produce ovum and hormones, estrogen and progesterone.
During the menstrual cycle, one of the ovaries releases the ovum in the fallopian tubes that may get fertilized or get shaded with the blood and tissues. The egg is produced through the process of oogenesis in the ovaries.
Therefore, the highlighted part is the ovary that stores the egg.
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Sally is a 41 year old female with a history of unsuccessful weight loss attempts. In the past, Sally has tried "almost every diet known to man" and now wants to lose "at least fifty pounds" and "stop fighting with myself". Sally lives alone, and works as an accountant. Her hobbies include reading, spending time with her cat, and shopping. She describes her life as "pretty isolated" and rates her happiness at a 4 out of 10. She explains that when trying to change her behavior, she usually "falls off the bandwagon after a few days", and describes herself as "stuck". She has no history of injuries or preclusions to exercise and has recently had a clean physical exam, with the exception of needing to lose weight.
Describe what approach you would take with Sally to help her change her behavior?
Answer:
the approach has been described below
Explanation:
I will have to use motivation as a way of enhancing change in the life of Sally. From this question, she seems to be a lonely lady, with low self-esteem and no physical activity. The first thing I would do is to help to get her out of monotony by motivating her.
Once motivated, I would help plan her diet and add combinations of physical activities. These activities may include walking and running. With time an expert would take over her physical training.
She has to make time for other activities such as yoga or community work. The purpose for this is so she can meet and connect with other people, this would give her a sense of belonging. And would help boost her self image.
In conclusion, Sally needs a combination of physical and emotional therapy in order to change her lifestyle.
1. Light waves continue moving in a straight path until what?
2. What are the three properties of light?
3. Which property occurs when the object seems to have bent & changed directions?
4. What are the two main wave types?
5. Give an example of matter waves.
6. TRUE OR FALSE: You can hear in space.
7. Which waves travel faster, light or sound?
Answer:
2 frequency intensity wave lenghth spectrum
Explanation:
Check your understanding! Mark any that are correct.
Mutations are random.
Mutations are most beneficial and useful for an organism.
Mutations can occur in both DNA and RNA, which are nucleic acids.
Mutations can only occur during interphase.
Not all genes code for proteins.
Not all genes are “turned on” at a given time.
Substitution mutations typically result in a frameshift mutation.
Mutations can be genetically inherited.
Answer:
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Complete the flowchart to show the stages of cellular respiration and fermentation.
Cellular Respiration and Fermentation
Answer:
The stages of cellular respiration are: Glycolysis, pyruvate oxidation, Krebs cycle and phosphorylative oxidation.
The fermentation stages are: glycolysis and pyruvate regeneration.
Explanation:
Cellular respiration is a biochemical process that occurs in all aerobic organisms and aims to promote the obtaining of the necessary energy so that the cells can perform the activities they need to perform. Cellular respiration occurs in mitochondria and oxygen must be present in the process.
Fermentation is the biochemical process that replaces cellular respiration in organisms that do not survive in the presence of oxygen, the anaerobic organisms that are some fungi and bacteria. Fermentation also aims to produce cellular energy.