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DerKrebs [107]
3 years ago
14

why is it said that natural selection acts on phenotypes rather than on the genetic material of an organism?

Biology
1 answer:
Phantasy [73]3 years ago
4 0

It is said because it doesn't change the genetic material, but the outside of the animal when the species slowly adapts to it's surroundings and predators.

Example: A group of 10 birds are in a forest. One of the birds has a short, stubby beak, and another 3 have long, thin ones. The rest of them are normal. If the only food left after a natural disaster was flower nectar, then the 3 with the long, thin beaks would survive, and the other birds, poorly adapted for this outcome, would not live.

It doesn't actually change the genetic makeup of an organism but may slowly alter it's entire gene pool over time.

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3 years ago
The endosymbiotic theory states that the mitochondria of eukaryotes are the evolutionary result of a Proto-eukaryotic cell engul
Slav-nsk [51]

Answer:

The correct answer is - C. retention of their own genome.

Explanation:

The endosymbiotic theory is a theory that suggests that eukaryotic cells are developed from prokaryotic cells. According to this theory, organelles like mitochondria are developed in eukaryotic cells as the result of proteo-bacteria cells engulfing aerobic bacteria.

The evidence of this theory can be seen as the mitochondria has their own genome such as circular DNA and ribosomes as the prokaryotes.

4 0
3 years ago
Name a structure that is located toward the dorsal side of the body, lateral and superior to the hamstring but inferior to the h
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Answer: Kidney

Explanation:

Kidney is a structure that is located toward the dorsal side of the body, lateral and superior to the hamstring but inferior to the heart.

The kidneys are a pair of bean shaped organs that are located at the downward part of the rib cage. The body of humans consists of two kidneys one kidney on each side of the spine and they're responsible for the filtering of excess water, waste products, and other impurities out of the human body.

8 0
2 years ago
What is the purpose of the part of the female reproductive system highlighted
Damm [24]
I think the answer is c
4 0
3 years ago
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Many people believe that vitamins and minerals are essentially the same type of nutrient but they are not: one is an organic mol
Minchanka [31]

Answer:

The correct statements are listed below.

Explanation:

Vitamins are organic and minerals are inorganic.

Organic compounds comes from living things.Vitamins generally exist as organic compounds for example all the vitamin such as vitamin A, Thiamine,riboflavin,biotin,pyridoxin,vitamin c,vitamin E, vitamin K exist as organic compounds.

On the other hand minerals are found in inorganic form for example nitrogen is found as nitrate and nitrite,phosphorus is found as phosphate group,phosphoric acid.

3 0
2 years ago
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