| A | B |
|---|
| two types of consumers | rabbit and coyote |
| a diagram showing the many feeding relationships that are in an ecosystem | food web |
| the process in which energy from the sun is used by plants to make sugar molecules | photsynthesis |
| illustrates the loss of energy from one trophic level to the next | energy pyramid |
| organisms that get their energy by eating other organisms | consumers |
| stored carbon from the remains of plants and animals that dies millions of years ago | fossil fuels |
| organisms that make their own food | producers |
| change that occurs on an abondoned farm | old-field succession |
| a part of the carbon cycle | atmospheric CO2 |
| results from excessive use of fertilizers | algal bloom |
| organisms that transform atmospheric nitrogen into usable nitrogen compounds | nitrogen-fixing bacteria |
| part of the nitrogen cycle | atomospheric N2 |
| transfer of energy form one organism to another | food chain |
