The earliest known fossil cells date to ___
years ago.
a. 3.4 hundred
b. 3.4 thousand
c. 3.4 million
d. 3.4 billion
e. 3.4 trillion
D
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Protein catalysts involved in the acceleration of the rate of chemical reactions are called
A) catalytic converters. B) growth agents. C) evolutionary molecules. D) enzymes.
Drugs that are HIV protease inhibitors
A. prevent HIV protease from degrading host cell proteins. B. block the translation of HIV proteases. C. bind to HIV proteases. D. prevent HIV proteases from breaking apart capsid proteins. E. bind to HIV proteases and prevent the proteases from breaking apart capsid proteins.
In secondary growth of a plant, a(an) ___
gives rise to ___ and a(an) ___ gives rise to ___.
a. vascular cambium-wood/ cork cambiumperiderm b. cork cambium-wood/apical meristemperiderm c. apical meristem-wood/apical meristemperiderm d. vascular cambium-periderm/cork cambiumwood e. vascular cambium-wood/apical meristemperiderm
The parietal lobe is responsible for ____.
A. vision B. sensory input from the skin and joints C. hearing D. generating a motor response E. inhibiting unsuitable behaviors