____ increases the frequency of adaptive mutations in a population over time

a. Fitness
b. Natural selection
c. Artificial selection
d. Adaptive radiation
e. Macroevolution


ANSWER: b

Biology & Microbiology

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Herpes keratitis is an infection of the eye.

Answer the following statement true (T) or false (F)

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____ are organisms that contain two or more kinds of genetically dissimilar cells from different zygotes

a. Heterozygotes b. Chimeras c. Recombinants d. Transgenics e. Polyploids

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Which of the following is NOT a step that ultimately leads to antibody production?

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Cats are an essential part of the life cycle of

a) Trypanosoma cruzi. b) Toxoplasma gondii. c) Plasmodium vivax. d) Leishmania donovani.

Biology & Microbiology