A special structure on certain cyanobacteria for nitrogen fixation is called a(n):
a. ammonia cyst.
b. homocyst.
c. heterocyst.
d. nematocyst.
e. pneumatocyst.
C
Biology & Microbiology
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Each DNA strand serves as a _____during DNA synthesis
a. replicate b. substitute c. template d. source of nucleotides e. primer
Biology & Microbiology
The first plants to colonize land were the
A. pteridophytes. B. bryophytes. C. gametophytes. D. lycophytes.
Biology & Microbiology
A compound is two or more different kinds of atoms bonded together.
Indicate whether the statement is true or false. A. True B. False
Biology & Microbiology
Bacterial endospores are used for
A) forming biofilms. B) bacterial reproduction. C) keeping the bacteria alive under harsh conditions. D) attracting viruses. E) bioremediation.
Biology & Microbiology