Cholesterol is a ________, which ________
A) terpene; is the basis for many animal and plant vitamins
B) fatty acid; functions in energy storage
C) steroid; is a component of eukaryotic membranes
D) steroid; is the basis for many animal and plant hormones
E) steroid; is a component of eukaryotic membranes and is the basis for many animal and plant hormones
Answer: E
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If the partial pressure of oxygen outside of a cell is 100 mmHg and the partial pressure of oxygen inside of a cell is 25 mmHg, which of the following statements is correct?
A. There will be a net movement of oxygen from outside the cell to inside the cell. B. There will be a net movement of oxygen from inside the cell to outside the cell. C. There will be no net movement of oxygen in either direction. D. There will be a net movement of carbon dioxide into the cell. E. There will be a net movement of carbon dioxide out of the cell.
Detritivores are
a. bacteria. b. plants. c. fungi. d. animals. e. both bacteria and fungi.
Histamine, serotonin, and bradykinin are all
A. mediators that increase chemotaxis. B. mediators of T-cell activity. C. fever inducers. D. mediators of B-cell activity. E. vasoactive mediators.
The colony count of a 10^-8 plate in a dilution series is 162. What is the bacterial count in the original sample?
What will be an ideal response?