Bacteria are able to increase their genetic variability by reproducing sexually
Indicate whether the statement is true or false
FALSE
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Some algae utilize calcium carbonate to:
a. deter herbivores. b. aid in maintaining a proper pH balance. c. assist in photosynthesis. d. replace mucus. e. prevent from freezing.
Viruses that infect bacteria are called ________.
A. viroids B. bacteriophages C. plasmids D. vectors
The purest form of water containing the fewest solutes occurs in
A) clouds. B) surface water. C) groundwater. D) precipitation.
Which pf the following explains why gases are termed "compressible" and liquids are not?
a) particles have fixed volume and are able to occupy the contained in which they are contained b) particles do not have much empty space between them, thus making them rigid c) particles have a large amount of empty space between them d) particles are held closely together by intermolecular forces