In amphibians, what function does the cloaca
serve?
a. urination
b. defecation
c. reproduction
d. locomotion
e. all of these except locomotion
E
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An organ must contain at least:
A. two different tissue types. B. two different cell types. C. all four of the tissue types. D. connective tissue. E. two different muscle types.
During the luteal phase, a(n) __________ forms from cells that surrounded the egg. Fill in the blank(s) with the appropriate word(s)
Seed banks
a. provide a source of seeds for farmers. b. preserve seeds for museums. c. preserve plant genetic diversity to be tapped by genetic engineers. d. distribute seeds to member seed companies. e. do all of these.
A population of birds migrating to winter nesting grounds is blown off course by a late-season hurricane and ends up on an island that is uninhabited by any animal species
Which of the following represents a density-independent factor that will limit the population size? A) Abundant fruit trees B) Heavily wooded C) Freshwater spring D) Abundant berry bushes E) Nightly temperature dropping below freezing