Which of the following is NOT a characteristic

of Australopithecus afarensis?



a. chimpanzee sized brain
b. narrow pelvis
c. S-shaped backbone
d. opening at the base of the skull
e. more than one of these is NOT a
characteristic of A.afarensis


B

Biology & Microbiology

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Which of the following statements regarding biogeochemical cycles is incorrect?

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a. chemoreceptors. b. mechanoreceptors. c. photoreceptors. d. thermoreceptors. e. none of these.

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What is enzyme activity?

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Exposer to air is necessary for microbial growth.

a. true b. false

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