Four of the five chemicals listed below are
bases used to construct nucleic acids. Select
the EXCEPTION.
a. adenine
b. cytosine
c. thymine
d. guanine
e. cysteine
E
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Biofilms ____
a. are formed by prokaryotes living in a watery environment b. may develop on surgical implants c. are exemplified by dental plaque
d. are formed by prokaryotes living in a watery environment and may develop on surgical implants e. are formed by prokaryotes living in a watery environment, may develop on surgical implants, and are exemplified by dental plaque
A special structure on certain cyanobacteria for nitrogen fixation is called a(n):
a. ammonia cyst. b. homocyst. c. heterocyst. d. nematocyst. e. pneumatocyst.
The hormone released from the hypothalamus that stimulates release of LH and FSH in both the male and female is
A. human growth hormone. B. testosterone. C. gonadotropin-releasing hormone. D. antidiuretic hormone. E. epinephrine.
The "run" in bacterial motility is the result of (clockwise/counterclockwise/whiplike) rotation of the flagella
What will be an ideal response?