Parasitism is one of the most widespread life strategies ever to evolve. Which of the following is consistent with this finding?
A) Parasites almost always predigest their hosts' tissues and, therefore, spend less energy and require fewer structural adaptations.
B) Parasites, unlike predators, feed on almost all the tissues of their host.
C) Parasites do not generally kill their hosts; thus they can feed on the same host throughout the host's normal life span and do not have competition from decomposers.
D) Parasites generally kill their host and can feed for a very long time because they are much smaller than their host.
C
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Species of Rhizobium and Bradyrhizobium bacteria are most directly associated with ____
a. nitrification b. ammonification c. nitrogen cycling d. nitrogen fixation e. nitrogen assimilation
The process of enzymatic hydrolysis takes place during:a
ingestion. b. digestion. c. absorption. d. egestion. e. elimination
Which of the following statements about the energy yield of aerobic respiration is false?
A) Glycolysis resulting from 1 glucose molecule yields 2 ATP molecules. B) The oxidation of pyruvate results in the production of 0 ATP molecules. C) Oxidative phosphorylation resulting from 1 glucose molecule yields 12 ATP molecules. D) The citric acid cycle resulting from 1 glucose molecules yields 2 ATP molecules.
Some members of this class have lungs and can use them to breathe air
A. Actinopterygii B. Cephalaspidomorphi C. Chonrichthyes D. Myxini E. Sarcoptergii