Which of the following does not contribute significantly to the mass of an atom?

A) electron
B) neutron
C) element
D) proton
E) isotope


A

Biology & Microbiology

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Which of the following viral diseases has been acquired in the United States by handling pet prairie dogs?

A) chickenpox B) hantavirus C) monkeypox D) smallpox

Biology & Microbiology

Aquaporins are ____

a. pores made of water molecules b. proteins utilized to transport water molecules c. found only in bacterial cells d. specific channels for water transport e. useful for cell signaling

Biology & Microbiology

When glucose absorption exceeds the body's immediate needs, excess glucose is:

a. stored as glycogen b. eliminated via the large intestine c. used by gut bacteria d. continuously circulated in the bloodstream e. excreted in the urine

Biology & Microbiology

Which specific defense mechanism protects against foreign organisms that have managed to infect body cells by destroying these cells?

A) cell-mediated immune system B) antibody-mediated immune system C) pyrogens D) inflammatory response

Biology & Microbiology