Geographic isolates of a particular species that differ from other populations by one or more characteristics are considered to be
A) clines.
B) subspecies.
C) evolutionary "dead ends."
D) ecotypes.
B
Biology & Microbiology
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Suppose a human population exhibits a Type III survival curve. What would you expect to happen to the curve over time if further dramatic improvements in medical technology take place?
What will be an ideal response?
Biology & Microbiology
During which period of a pregnancy do the organ systems of the baby develop?
Biology & Microbiology
There are ______ different alleles for blood type in humans.
A. 3 B. 4 C. 8 D. 12
Biology & Microbiology
Recombination of two genes can occur because of ________________.
a) only independent assortment b) only crossing over c) both independent assortment or crossing over d) mutation
Biology & Microbiology