1.
Scientific study of interactions among organisms and between organisms and their environment
2.
A biological community of interacting organisms and their physical environment
3.
A living part of an ecosystem
4.
A nonliving part of an ecosystem
5.
An organism that makes its own food
6.
An organism that cannot make its own food
7.
The process by which an organism forms carbohydrates using chemicals, rather than light, as an energy source
8.
Conversion of light energy from the sun into chemical energy
9.
A consumer that eats both plants and animals
10.
Organism that feeds on plant and animal remains and other dead matter
11.
A series of steps in which organisms transfer energy by eating and being eaten
12.
Network of complex interactions formed by the feeding relationships amount the various organisms in an ecosystem
13.
Step in a food chain or food web
14.
The movement of abiotic factors between the living and nonliving components within ecosystems
15.
A substance that is limited or scarce in an ecosystem so its limits productivity
