Which of the following adaptations is a result of natural selection acting on Plasmodium?
a. All of the choices
b. Infected humans are more likely to be bitten by mosquitoes than uninfected people are.
c. Infected mosquitoes are more likely to feed several times a night than uninfected mosquitoes are.
d. Plasmodium has developed resistance to several antimalarial drugs.
a
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Graded potentials are particularly important for conveying stimulus intensity in
A. sensory neurons. B. motor neurons. C. interneurons. D. skeletal muscle cells. E. Schwann cells.
Cyclic AMP is degraded by __________.
A) phosphodiesterase B) adenylate cyclase C) G proteins D) AMP E) protein kinase
Genetic engineering has
A. reduced genetic diversity. B. expanded scientists' ability to modify domesticated plants and animals. C. created entirely new species. D. produced interspecific hybrids.
The arrangement illustrated in Figure 11.1 is known as
A. staphylococcus. B. palisades. C. streptobacillus. D. sarcinae. E. tetrad.