Microscope rulers measure microorganisms in micrometers (?m). How many micrometers fit in a meter?

A. 100
B. 1,000,000
C. 100,000
D. 1,000
E. 10


B. 1,000,000

Biology & Microbiology

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The central issue in population genetics is

A. natural selection. B. population size. C. rates of mutation. D. genetic variation. E. phenotypic variation.

Biology & Microbiology

In the figure above, representing transcription, the item labeled "C" is

a. the nontemplate strand. b. RNA-DNA hybrid. c. the template strand. d. DNA double helix. e. the RNA copy.

Biology & Microbiology

GABA works by

a. inhibiting reuptake. b. enzyme degradation of neurotransmitter. c. stimulating reuptake. d. dilating blood vessels. e. inhibiting release of other neurotransmitters.

Biology & Microbiology

Use the figure below to match the pigments' description with their absorption spectra. Figure 6.5C

A. Closely related to chlorophyll a B. Potent antioxidant and signaling molecule found in carrots C. Accessory pigment in red flowers D. Allows algae in deep sea waters to survive by absorbing green and blue-green light E. Main pigment in photosynthetic plants

Biology & Microbiology