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Ad libitum [116K]
3 years ago
14

Suppose a new mutation that improves metabolic efficiency is lost from a small population of mammals living in a region of seaso

nal food scarcity after a hurricane eliminates half the mammal population. This is an example of _________.A) sexual selection.
B) directional selection.
C) genetic drift.
D) stabilizing selection.
E) disruptive selection.
Biology
1 answer:
Troyanec [42]3 years ago
4 0

Answer:

C) genetic drift.

Explanation:

Genetic drift is the random change in the frequency of alleles in a population due to random sampling. Many circumstances can lead to genetic drift for example bottleneck effect, founder effect, etc.

The bottleneck effect occurs when most of the members of a population die because of any natural disaster like flood, fire, etc. This can cause a certain allele to be lost in the remaining population because of losing major populations. So here due to hurricane half of the mammal population gets eliminated which shows it is an example of the genetic drift.

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Tom has developed chronic kidney disease. he has lost weight and has a poor intake. the most likely cause is:
almond37 [142]
Chronic kidney disease is when your kidney is not functioning properly. Kidneys contain filters called nephrons. It is the their job to filter the blood of waste products and extra fluid. As a result, your body flushes the waste out as urine. The most common causes of chronic kidney disease are diabetes and high blood pressure. If your blood vessels contain a high concentration of sugar and cholesterol, the nephrons would take the exhaustive work. In the long run, if you keep eating unhealthy food, the kidney could no longer catch up. Thus, resulting to chronic kidney disease.
6 0
3 years ago
NEED HELP FOR 100 POINTS AND BRAINLIEST PLEASEEE
Margarita [4]

Answer:

this is assuming brown eyes are dominant

6a 9/16

b.3/16

c 3/16

d. 1/16

Explanation: there might be an easy way to calculate it but I draw it out and use the dominance and lettering and just count I used slide 5 as a starting point

to do more than this would require seeing the square on slide 1 they are referring to as it is specific to 2 parents

4. a Bb and bb

b. bb and bb

5. BBEE BBEe BbEEBbEe

BBEe BBee BbEe Bbee

BbEE BbEe bbEE bbEe

BbEe Bbee bbEe bbee

2 a Bb

b Brown hair

c. Bb and brown hair

d. blonde hair

e. BB

3. A50%

c. 50%

25%

75%

25%

6 0
3 years ago
Now, assume the individuals with the filled symbols in the kindred have the O blood type, whereas all the individuals with the o
jek_recluse [69]

Answer:

When we talk about the inheritance of traits, or the passage of traits from parents to future generations down the line, we are not just talking about the visual (phenotypical) expression of those traits, but also, their underlying explanation, which is the genotype. A genotype is basically how the genes of the parents combine in such a way that the children inherit a set of traits from the parents, and express them phenotypically, or not.

In the case of blood types, we have four phenotypic groups: A, B and O. Each one of these types is characterized by the underlying set of genes that are responsible for what is expressed. While the O blood type presents a genotype ii, which is recessive, the A and B types will have the following genetic patterns: Ia Ia, or, Ia i (characteristic of the O genetic material) for the A type and: Ib Ib, or Ib i, for the B type. When there is a genetic conjugation from parents genetic material, regarding blood type, we would have these sets of genes combining. In most of the possible combinations genetically speaking, we have the recessive i gene appearing, including in the A and B dominant blood types. This means that when crossed, there will always be a chance of at least one offspring presenting the O blood type, even if one of the parents is dominant A, or B.

In answer: it is the fact that all three types present the recessive allele i, typical of the O blood type, that when pairings of genes happen between parents, the genetic characteristic of the O type may present itself in a dominant fashion, instead of the usual recessive pattern.

4 0
3 years ago
Which type of organic molecule is wax?
Elena L [17]
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3 0
3 years ago
Read 2 more answers
Surface tension is an example of ?​
lorasvet [3.4K]

Answer:

Surface tension depends mainly upon the forces of attraction between the particles within the given liquid and also upon the gas, solid, or liquid in contact with it. The molecules in a drop of water, for example, attract each other weakly.

Example:

a glass of water is sitting on a table put a paper clip in it. it stays floating on the top.

Water striders can walk on water because of the surface tension of water.

4 0
3 years ago
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