What is an example of a +/- interaction?
A. competition
B. mutualism
C. commensalism
D. predation
E. both competition and parasitism
D. predation
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Which of the following is a reversible post-translational covalent modification?
A. phosphorylation B. acetylation C. disulfide bond formation D. phosphorylation and acetylation E. acetylation and disulfide bond formation
Bioaugmentation
A. adds specific microorganisms to the polluted site. B. only enhances the growth, onsite, of the resident population of microbes. C. usually utilizes genetically engineered bacteria. D. is typically done offsite. E. only enhances the growth, onsite, of the resident population of microbes AND usually utilizes genetically engineered bacteria.
In the resting state, due to the concentrations of sodium and potassium ions on either side of the plasma membrane, the neuron is said to be
a. activated. b. polarized c. unequal. d. charged. e. unbalanced.
Exchange of materials between blood and tissues depends upon ____
a. elastic recoil of capillary walls
b. capillary vasoconstriction c. small number of active beds d. thin capillary walls e. fast capillary blood flow