All amphibians must return to the water to 

A. feed.
B. breathe.
C. reproduce.
D. All of these answers are true.


C. reproduce.

Biology & Microbiology

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If you were diagnosing a case of infertility in a male patient, and you found that his sperm failed to swim as a result of inactivation, you would diagnose a problem in the

A. bulbourethral gland. B. seminal vesicle. C. prostate gland. D. vas deferens. E. epididymis.

Biology & Microbiology

FSH in males targets ________ cells, which indirectly enhances sperm formation

Fill in the blank(s) with correct word

Biology & Microbiology

The process in succession in which the actions of early-arriving species enable the success of later-arriving species is:

A) mutualism. B) coevolution. C) mimicry. D) facilitation.

Biology & Microbiology

Opsonization is the enhancement of ________ due to the deposition of ________ or ________ on the surface of a pathogen or other antigen

a. resistance / antibody / lipids b. resistance / lipids / proteins c. phagocytosis / antibody / complement d. phagocytosis / PAMPs / PRR

Biology & Microbiology