Caring for young by both parents is most
common in
a. birds.
b. amphibians.
c. mammals.
d. reptiles.
e. amphibians and reptiles.
A
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Diseases can be controlled through immunization even if the percentage of the population that is immunized is less than 100% because
A) vectors can be controlled through other means. B) most diseases lack reservoirs. C) of herd immunity. D) vehicles can be sterilized.
What invention about 11,000 years ago led to a
boom in the human population?
a. the wheel b. agriculture c. the printing press d. the steam engine e. all of these
Which of the following is extremely radiation resistant?
A. Deinococcus B. Cytophaga C. Thermotoga D. Aquifex
Which of the following regarding all of the tapeworms that infect humans is TRUE?
A. They all have non-human intermediate hosts. B. The larva can directly infect humans upon contact with skin. C. Humans are the normal intermediate hosts. D. They are transmitted by insect vectors. E. They reside in the muscle tissue of the definitive host.