Host defenses are NOT compromised by

A) pre-existing disease or infection.
B) chemotherapy or immunosuppressive drugs.
C) surgery.
D) middle age.


Answer: D) middle age.

Biology & Microbiology

You might also like to view...

Human chromosome 2 appears to be:

A. a fusion product of two simian chromosomes. B. significantly different from simian chromosome 2. C. 50% homologous to simian chromosome 2. D. primarily coding for human traits.

Biology & Microbiology

If a helical turn is removed from a closed-circular DNA molecule:

A. only supercoiling will occur. B. only strand separation will occur. C. supercoiling and/or strand separation will occur. D. cruciform DNA will likely form. E. solenoidal DNA will likely form.

Biology & Microbiology

In snapdragons, the red allele CR is incompletely dominant over the white allele CW. If you cross a pink snapdragon

(CRCW) with a white snapdragon (CWCW), what percentage of the progeny will be red?

a. 0% b. 25% c. 50% d. 75% e. 100%

Biology & Microbiology

The force a contracting muscle exerts to move an object is muscle ____

a. tone b. tension c. power d. work e. energy

Biology & Microbiology