Thirty organisms containing the same phylogenetic marker are all considered to be within the same
A) phylotype.
B) species.
C) functional group.
D) phylogenetic tree.
Answer: A
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Which of the following statements regarding viremia is incorrect?
A. Droplet transmission of viruses like the measles virus results in viremia. B. The variola virus multiplies in white blood cells, and cell lysis results in viremia. C. HHV-3 is disseminated to the skin by viremia. D. Shingles is a manifestation of persistent viremia after a course of chicken pox.
A developing fetuses sex is determined by
a. female gamete (oogonia). b. at the beginning of the third trimester. c. male gamete (spermatogonia). d. puberty. e. autosomes.
How can the preservation of biological diversity be justified?Check all that apply.
A. supernatural responsibility B. economic value C. exploitative value D. ethical grounds E. ecological value
The theory that life began in the distant past from nonliving molecules that became able to reproduce themselves is called
A) prehistoric evolution. B) endosymbiont evolution. C) natural selection. D) spontaneous evolution. E) prebiotic evolution.