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