Cattle are able to survive on a diet consisting almost entirely of plant material because cattle _____
A) are autotrophic
B) re-ingest their feces
C) manufacture all fifteen amino acids out of sugars in the liver
D) saliva has enzymes capable of digesting cellulose
E) have cellulose-digesting, symbiotic microorganisms in chambers of their stomachs
Answer: E
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Order the following regions of a gene from the most upstream region (1) to the most downstream region (5). _____ -35 consensus sequence _____ rut site _____ Pribnow box _____ terminator _____ coding sequence
Fill in the blank(s) with the appropriate word(s).
In the example of the giant kelp forests on the Pacific coast, a rise in the otter population would have what effect on the kelp populations?
A. Kelp populations would decrease due to increased predation by otters. B. Kelp populations would increase due to an increase in sea urchins. C. Kelp populations would decrease due to an increase in sea urchins. D. Kelp populations would increase due to a decrease in sea urchins. E. Kelp populations would be totally unaffected by the otter population.
In the glycerol phosphate shuttle, reducing equivalents from NADH enter the electron transport system by reactions carrying electrons to ________.
A) complex III B) complex IV C) malate D) complex I
Opportunistic infections typical of AIDS but rare otherwise include
A. tuberculosis. B. Pneumocystis pneumonia. C. Kaposi's sarcoma. D. tuberculosis and shingles. E. Pneumocystis pneumonia and Kaposi's sarcoma.