About a day after fertilization, the zygote undergoes ________, which is a rapid series of cell divisions
Fill in the blank(s) with correct word
cleavage
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A focal infection is where the infectious agent
A) remains confined to a specific tissue. B) spreads to several sites and fluids, usually in the blood. C) breaks loose from initial infection and is carried to other tissues. D) follows an initial infection by another agent.
A stool sample contains eggs that are oval and have no evidence of a spine. This observation is consistent with infestation with ________ species
A) Fasciola B) Wuchereria C) Schistosoma D) Taenia E) Trypanosoma
A fontanelle __________.
Fill in the blank(s) with the appropriate word(s).
Which of the following would be least likely to be true of an animal that is a regulator?
a. It can live in a variable climate because of its homeostatic mechanisms. b. It may have a larger geographic range than a conformer. c. It may acclimatize to winter by increasing the thickness of its insulating coat. d. It has lower energy requirements than a conformer of similar size. e. It may use behavioral as well as physiological mechanisms for responding to changing conditions.