____ 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
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Herpes keratitis is an infection of the eye.
Answer the following statement true (T) or false (F)
____ 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
Which of the following is NOT a step that ultimately leads to antibody production?
a. Activation of helper T cells by dendritic cells b. Differentiation of plasma cells c. Activation of cytotoxic T cells by helper T cells d. Immature B cells conducting surveillance for foreign epitopes
Cats are an essential part of the life cycle of
a) Trypanosoma cruzi. b) Toxoplasma gondii. c) Plasmodium vivax. d) Leishmania donovani.