Viruses that cause infection resulting in alternating periods of activity with symptoms and inactivity without symptoms are called ________.

A. prions
B. delta agents
C. viroids
D. oncogenic
E. latent


Answer: E

Biology & Microbiology

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A useless or rudimentary body part that is thought to have been important in ancestral populations but no longer has a known function is termed a(n) ________

A) evolved structure B) terminal structure C) vestigial structure D) residual structure

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A population pyramid:

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In a homeostatic system, the integrating system executes changes to compensate for deviances from the set point.

Answer the following statement true (T) or false (F)

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