Inside of the penis there are ____ cylinders of

spongy tissue.



a. one
b. two
c. three
d. four
e. none of these


C

Biology & Microbiology

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Perpetually young tissues where cells retain the

ability to divide are a. vascular. b. meristematic. c. protective. d. photosynthetic. e. all of these.

Biology & Microbiology

Prokaryotes have ________ ribosomes with ________ and ________ subunits, whereas eukaryotes have ________ ribosomes with ________ and ________ subunits

A) 80S, 50S, 30S; 100S, 60S, 40S B) 100S, 60S, 50S; 90S, 60S, 40S C) 70S, 50S, 30S; 80S, 60S, 40S D) 70S, 40S, 30S; 80S, 50S, 30S E) 80S, 60S, 40S; 70S, 50S, 30S

Biology & Microbiology

Some animal populations are kept in check by 

A. hosts. B. decomposers. C. amensalism. D. predators.

Biology & Microbiology

Which type of medium suppresses the growth of unwanted bacteria and encourages growth of desired microbes?

A. differential media B. complex media C. selective media D. enrichment media

Biology & Microbiology