When a population goes through a bottleneck, genetic drift occurs in the large population of survivors
of a severe change in environment.
___________ Indicate whether the statement is true or false.
F, small
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According to MacArthur and Wilson's theory of island biogeography, both the land area (size) of an island and the _____________________ contribute to species diversity
A. depth of the water surrounding the island B. distance of the island from neighboring land masses C. rock composition of the island D. climate of the island E. proximity of the island to the equator
Which of the following statements about B cells is true?
a. B cells target pathogens in lymph. b. B cells are involved in the cell-mediated immune response. c. B cells target and destroy infected cells. d. B cells bind antigens in MHC molecules.
How does the nervous system change with aging?
What will be an ideal response?
Which offspring inherit all their mitochondrial DNA from their mother and none from their father?
A. both sons and daughters B. daughters C. sons D. neither sons nor daughters