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Snowcat [4.5K]
3 years ago
14

What are required for natural selection to occur

Biology
1 answer:
coldgirl [10]3 years ago
4 0
Animals and god and humans
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A group of scientists designed a clinical study to investigate the effects of cholesterol deficiency in humans. For the duration
viva [34]

Answer:

c. none of the subjects to show signs and symptoms of a cholesterol deficiency during the entire study.

Explanation:

this is because the blood cholesterol is from two sources. Nearly 80% of the cholesterol the body needs  are made by the liver and intestine.certain small amounts are also produced in the adrenal glands and the reproductive organs.The remaining fragment amounts comes from the diets.

Therefore even if these subjects  were fed with diet without cholesterol, it will not have any significant effects on the body cholesterol composition. Therefore no symptoms of its deficiency will be observed.

Generally it biosynthesis is regulated by the amount of cholesterol present in the blood.

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3 years ago
A single-celled organism can be classified as a prokaryotic cell based on the absence of-
Zina [86]

Answer:

D. nucleus

Explanation:

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7 0
3 years ago
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A client on vacation experiences severe allergy symptoms, headache, and sinusitis (without respiratory distress). this client ad
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3 years ago
Structure that forms along the lining of the uterus as the embryo implants
tester [92]

<u>Answer:</u>

Blastocyst is a structure that subsequently forms the embryo during the process of fertilization.

<u>Explanation:</u>

  • In the "innermost layer of the uterine wall" there is endometrium layer, this is where the uterus does the embryo implant.
  • The blastocyst stage is the period of embedding the "lining of the uterus".
  • But the fertilization of egg is done in the "Fallopian tube" and is later implanted in the uterus.
  • Hence blastocyst is the lining structure of the uterus as the implantation of embryo occurs.
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3 years ago
If the activation energy required for a chemical reaction were reduced, what would happen to the rate of the reaction?
4vir4ik [10]
If the activation energy required for a chemical reaction were reduced, the rate would increase so the answer is A.
Hope this helps!
8 0
3 years ago
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