CO2 makes up about ________ percent of the atmosphere
A) 0.035 B) 35 C) 3.5 D) 37 E) 0.35
Answer: A
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The ultimate source of energy for humans comes from what source?
A. The sun B. Plants C. Water D. Air E. Animals
A hormone that prevents release of a different hormone by its target endocrine cells is called a(n) _____ hormone
a. releasing b. inhibiting c. amino acid-derived d. steroid e. peptide
Which of the following is the mechanism of action of cyclosporine?
A) It blocks the complement cascade. B) It blocks the activity of activated Th1 T cells. C) It directly blocks CTL activity. D) It interferes with activation of Th2 T cells. E) It is an anti-inflammatory interfering with leukotriene function.
Cyanide is a chemical used to dissolve gold and is harmful to the environment and organisms living there. A couple of biochemists came up with the idea of using the bacteria in the genus Pseudomonas to break down the cyanide used by a gold mining company. Which term refers to this use of bacteria?
A. bioremediation B. bioextraction C. decomposition D. biosynthesis E. immunoextraction