The experiments of which of the following

researchers clearly distinguished DNA and
NOT protein as the hereditary material?
a. Pauling
b. Hershey and Chase
c. Griffith
d. Watson and Crick
e. Avery


B

Biology & Microbiology

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Which of the following species will not establish a territory during the breeding season?

a. Lions b. Sage grouse c. Elk d. Bison e. Elephant seals

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Competition among individuals of the same species is referred to as ________ competition

Fill in the blank(s) with correct word

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Adult echinoderms that have radial symmetry lack

A) a coelom. B) nervous tissue. C) a head. D) a tubular gut with separate mouth and anus. E) a method of movement.

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Which of the following is a zoonosis caused by a spirochete?

A. bejel B. leptospirosis C. pinta D. syphilis E. yaws

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