When a dolphin consumes a large volume of water and electrolytes, it must be able to get rid of large volumes of water via urine and feces. This is an example of the process of
A) osmoregulation.
B) convection.
C) thermoregulation.
D) countercurrent heat exchange.
Answer: A
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A potent dicot weed killer, 2,4-D, is actually a synthetic
a. phytochrome. b. gibberellin. c. auxin. d. cytokinin. e. abscisic acid.
Metabolism is the sum of all the:
A) chemical reactions that a cell carries out. B) energy a cell uses. C) ATP a cell contains. D) enzymes a cell contains. E) vitamins a cell contains.
________ is a halogen used in gaseous and liquid form for large scale disinfection of drinking water and sewage.
Fill in the blank(s) with the appropriate word(s).
Which of the following statements regarding waterborne pathogens is incorrect?
A. Microbes can enter surface water through ordinary exposure to air and soil. B. Waterborne pathogens are primarily Campylobacter, Salmonella, Shigella, Vibrio, and Mycobacterium. C. Waterborne pathogens include bacteria, viruses, and protozoans. D. Encysted protozoans can survive in water for long periods without a human host.