AIDS, or acquired immunodeficiency syndrome, is caused by ________.

A. a virus
B. a protozoan
C. a bacteria
D. a fungus


Answer: A

Biology & Microbiology

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In the figure above, which number represents the point in the cell cycle during which the chromosomes are replicated?

A) I B) II C) III D) IV E) V

Biology & Microbiology

The primate fossil named Lucy was a(n):

a. sahelanthropus b. australopith c. cercopith d. prosimian e. hominid

Biology & Microbiology

Glucose molecules provide energy to power the swimming motion of sperm. In this example, the sperm are changing ________

A) chemical energy into kinetic energy
B) chemical energy into potential energy
C) kinetic energy into potential energy
D) kinetic energy into chemical energy

Biology & Microbiology

The diagnosis of hypertension in adults is based on the _____

A) measurement of fatty deposits on the endothelium of arteries B) measurement of the LDL/HDL ratio in peripheral blood C) percentage of blood volume made up of platelets D) blood pressure being greater than 140 mm Hg systolic and/or greater than 90 mm Hg diastolic

Biology & Microbiology