One Aspect of Darwin's Theory of Natural Selection Is That

question 24

Multiple Choice

One aspect of Darwin's theory of natural selection is that adaptations not useful to fitness are lost faster if they have a greater cost.With this in mind,which of the following explanation is most likely true?

• A)The human little toe is not going away in the near future.
• B)The human appendix must currently serve an essential function or it would not be in our bodies.
• C)It is a mystery why we do not have tails.
• D)Humans are relatively hairless because we look better without hair.

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Definitions:

Vascular Sounds

Sounds made by the blood circulating through the arteries and veins, often assessed using a stethoscope to detect abnormalities.

Pernicious Anemia

A type of anemia caused by the body’s inability to absorb vitamin B12, leading to a reduction in red blood cell production.

Gastric Acid Secretion

The production of hydrochloric acid by the stomach's parietal cells, essential for digestion and protection against pathogens.

Gastrointestinal Emptying

The process through which the stomach and intestines move consumed food and liquids through the digestive system to eventually be excreted.