Animals that participate in the life cycles of pathogens and transmit pathogens from host to host are
A. aerosols.
B. fomites.
C. mechanical vectors.
D. droplet nuclei.
E. biological vectors.
Answer: E
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Humans and chimps look and behave differently due to differences in ________ rather than in genome sequence.
A) gene expression B) genetic mutation C) phenotypes D) mtDNA
Connective tissues include lymph, ligaments, tendons, and
A) cardiac muscle. B) skin cells. C) cartilage. D) vessel linings. E) exocrine glands.
Which of the following helminth parasites do humans acquire by eating undercooked saltwater fish?
A. Schistosoma B. Fasciola C. Echinococcus D. Anisakis E. Ascaris
Which of the following would be a position held by an adherent of the punctuated equilibrium theory?
A) A new species forms most of its unique features as it comes into existence and then changes little for the duration of its existence. B) One should expect to find many transitional fossils left by organisms in the process of forming new species. C) Given enough time, most existing species will gradually evolve into new species. D) Natural selection is unimportant as a mechanism of evolution. E) Most speciation is anagenetic.