If a human red blood cell takes the shortest possible route from the right ventricle to the right atrium, then it must travel through _____ capillary beds.

A. one
B. two
C. three
D. four
E. five


B. two

Biology & Microbiology

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The Ebola virus causes ________.

A. pulmonary syndrome B. encephalitis C. lassa fever D. hemorrhagic fever

Biology & Microbiology

________ first noted an acidic substance in the nuclei of cells from pus.

A) Mendel B) Watson C) Miescher D) McCarty

Biology & Microbiology

If the parents of a family already have two boys, what is the probability that the next two offspring will both be girls?

A) 1 B) 1/2 C) 1/3 D) 1/4 E) 1/8

Biology & Microbiology

Organisms that invest all their energy into growth, development, and energy storage, followed by one massive reproductive effort and then death, are called ________

Fill in the blank(s) with correct word

Biology & Microbiology