The pigment most involved with photoperiodism is ____.
A. chlorophyll
B. xanthophyll
C. anthocyanin
D. phytochrome
E. phycoerythrin
Answer: D
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Plant pollinators include
a. bees. b. butterflies. c. flies. d. beetles. e. all of these.
Media used for coliform enumeration include chemicals that change color depending on the enzymes present in the microbes, thereby allowing a count of total bacteria and total coliforms from a single plate. This type of medium is termed ________.
A. defined B. selective C. complex D. differential
List one of the two geographical characteristics of most deserts
What will be an ideal response?
Bacteriophages engage in two interactive cycles with bacteria. What are these cycles?
A) heteroduplex and homoduplex B) insertion and replication C) negative and positive D) auxotrophic and prototrophic E) lytic and lysogenic