Figure 3-4 
-Refer to Figure 3-4. What does each of the two producers have a comparative advantage in?
Definitions:
Polar
Relating to the extreme northern or southern regions of the Earth, characterized by extreme cold and ice-covered landscapes.
Hydrophobic Molecules
Molecules that repel water, typically nonpolar substances that do not mix with water.
Water
A transparent, tasteless, odorless, and nearly colorless chemical substance that is the main constituent of Earth's streams, lakes, and oceans, and the fluids of most living organisms.
Second Energy Level
The energy level beyond the first in an atom where electrons can reside, typically holding up to eight electrons.
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