Random changes in gene frequency that occur in small populations describes the concept of
a. genetic drift.
b. convergent evolution.
c. adaptive radiation.
d. sympatric speciation.
e. parapatric speciation.
A
Integrate and Apply What You've Learned (Short Answer)
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is ____. a. society b. folklore c. culture d. personality e. adaptation
Visible light ranges from (A)_________ to (B)_____________.
a. (A) 300nm, (B) 700nm b. (A) 200nm, (B) 800nm c. (A) 400nm, (B) 900nm d. (A) 400nm, (B) 700nm
The best way to treat an underweight person is to advise him or her to
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Answer the following questions true (T) or false (F)
1. To move a molecule into a cell against the concentration gradient requires energy. 2. Exocytosis is an example of active transport of a substance into the cell. 3. Phagocytosis is an example of passive transport.