Some Physiological and Morphological Adaptations Appear to Have Evolved Independently

question 15

Multiple Choice

Some physiological and morphological adaptations appear to have evolved independently many times, while others appear to have evolved only once. Which of the following is an example of this?

• A)Air breathing in humans has arisen independently multiple times, while an amniotic egg has evolved just once.
• B)Air breathing in amphibians has arisen independently multiple times, while an amniotic egg has evolved just once.
• C)Air breathing in fishes has arisen independently multiple times, while an amniotic egg has evolved just once.
• D)Air breathing in birds has arisen just once, while an amniotic egg has evolved multiple times.

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Definitions:

Hypothalamus

Diencephalon structure that contains many nuclei associated with temperature regulation, eating, drinking, and sexual behavior.

Neurotransmitter Systems

Systems in the brain that use neurotransmitters to communicate between neurons, influencing various functions such as mood, sleep, and heart rate.

Dopamine

A neurotransmitter involved in reward, motivation, and motor control in the brain.

Schizophrenia

A psychological condition marked by unusual conduct, peculiar speech patterns, and impaired comprehension of reality.