The ____ are limited to three groups of proteobacteria

a. chemoautotrophs only
b. chemoheterotrophs
c. photoautotrophs
d. photoheterotrophs only
e. chemoautotrophs and photoheterotrophs


ANSWER: d

Biology & Microbiology

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Reptiles dominated the:a

Proterozoic era. b. Paleozoic era. c. Mesozoic era. d. Cenozoic era. e. Triassic era

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If a person were stranded for two days with virtually no drinking water, you would expect the following to occur

A) a decrease in antidiuretic hormone (ADH) secretion B) production of dilute urine C) production of concentrated urine D) a decrease in aldosterone secretion

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