In many mammalian species, including bats and most non-human primates, a bone in the penis, called
the ____, helps to maintain it in an erect state.
a. pendulum
b. baculum
c. colostrum
d. gametogonium
e. marsupium
B
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Bioluminescence is:
A. the production and emission of light by organisms B. the capture of moonlight for nocturnal photosynthesis C. the absorption of light by pigments for transfer to chlorophyll a D. the ability to detect and move away from sources of light E. the ability to detect and move toward sources of light
Which type of medium distinguishes different types of microorganisms based on an observable change in the colonies or in the medium?
A. Differential B. Reducing C. Selective D. Enumeration E. Enriched
All the processes that lead to the death of a plant or
any of its organs are a. dormancy. b. vernalization. c. abscission. d. senescence. e. none of these.
This newly identified organism has been discovered to live on our skin
a. reduce pH b. increase pH c. no effect