A female horse can mate with a male donkey but they will produce a mule that is sterile. This is an example of what
type of isolation mechanism?
a. allopatric
b. physical
c. behavioral
d. reproductive
e. geological
ANSWER: d
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The Calvin cycle in C3 plants occurs in ________ cells, whereas the Calvin cycle in C4 plants occurs in the ________.
Fill in the blank(s) with the appropriate word(s).
What is the difference between an aldose sugar and a ketose sugar?
A) the number of carbons B) the position of the hydroxyl groups C) the position of the carbonyl group D) One is a ring form, the other is a linear chain/
The major function of interferon-gamma is to
A. Induce the activation of resident macrophages B. Inhibit migration of macrophages from reaction sites C. Promote and maintain the proliferation of T cells D. Promote B and T cell growth
A bundle of long axons outside of the central nervous system is called a(n) __________
Fill in the blank(s) with the appropriate word(s)