HIV-1 is believed to have been transmitted to humans from which of the following organisms?

A) gorillas
B) sooty mangabeys
C) African green monkeys
D) chimpanzees
E) baboons


D

Biology & Microbiology

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Which structures found in ferns are lacking in

mosses?

a. spores b. gametophytes c. xylem d. sporophytes e. flagellated sperm

Biology & Microbiology

The accompanying diagram represents a single____

a. nephron b. kidney c. renal capillary d. renal vein e. renal artery

Biology & Microbiology

Changes in the DNA are called ________

Fill in the blank(s) with correct word

Biology & Microbiology

Where are sperm stored after they are produced?

a. in the vas deferens b. in the epididymis c. in the seminiferous tubules d. in the penis

Biology & Microbiology