Read each sentence and identify the word/phrase that you believe correctly completes the statement. Then, click on the arrow to see if your answer is correct.
1. There are four major groups of organic molecules:
,
,
, and
.
2. The energy in
is used by photosynthetic organisms to make
.
and water are used as raw materials, and
is released.
3.
is broken down by
, and the energy that is released is stored in molecules of
.
4. When primary production in the ocean is nutrient limited, the nutrient that is most often limiting is
.
5. The major difference between prokaryotes and eukaryotes is the presence of
-bound
.
6. The movement of dissolved substances from areas of high concentration to areas of low concentration is called
.
is the diffusion of water through a
.
7.
is the control of the internal concentration of a solute.
8. The body temperatures of
go up and down as the water gets warmer or colder.
maintain a relatively constant body temperature.
9. Most cells divide by the process of
, which produces two identical cells called
.
10. Sexual reproduction involves the fusion of male and female
, which are produced by a form of cell division called
.
11. The fundamental unit of evolution, as well as of biological classification, is the
.
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