All of the chemical reactions used to break down nutrients and build up components within the body are collectively known as
A. anabolism.
B. catabolism.
C. metabolism.
D. proteolysis.
E. hydrolysis.
C. metabolism.
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Which of the following is classified as a fibrous joint
a. synchondrosis b. gomphosis c. symphysis d. pivot
The most widely accepted and supported model that explains the movement of xylem sap is the ____
mechanism.
a. cohesion-tension b. translocation c. pressure flow d. osmosis e. transpiration
Imagine that you discover a microbial deep-sea organism that can derive energy from (inorganic) hydrogen gas (H2). However, this microbe can also synthesize organic compounds from carbon-containing inorganic molecules in the ocean. This microbe is a:
a. phototroph. b. photoautotroph. c. photoheterotroph. d. chemoheterotroph. e. chemoautotroph.
A scientist has tracked the population sizes of wolves and caribou within a national park. Assuming that there are no other prey species available to the wolves, how will the wolf and caribou populations change over time?
A. The wolf population will increase as caribou numbers increase (although there will be a slight lag). B. The wolf population will increase exponentially, regardless of the caribou population. C. The wolf population will decrease as caribou numbers increase (although there will be a slight lag). D. The wolf population will fluctuate between high and low levels, but this will be independent of the caribou population. E. The wolf and caribou populations will fluctuate periodically, and the graphs of their population size will match exactly (i.e., there is no lag).