Parasitic Species Tend to Have Simple Morphologies

question 3

Multiple Choice

Parasitic species tend to have simple morphologies. Which of the following statements best explains this observation?

• A) Parasites evolved early, and this is why they have simple morphologies.
• B) Parasites evolved simple morphologies in order to reproduce successfully in their hosts.
• C) Simple morphologies convey some advantages in most parasites.
• D) Parasites have simple morphologies to evade detection by their hosts.

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Definitions:

Ventromedial Nucleus

A region in the hypothalamus involved in regulating hunger and satiety.

Foramen Magnum

A large opening in the base of the skull through which the spinal cord passes to connect with the brain.

Electrically Stimulated

Refers to applying electrical impulses to tissues or nerves to evoke a physiological response.

Vasocongestion

Engorgement of blood vessels with blood, which swells the genitals and breasts during sexual arousal.