| A | B |
| photosynthesis | water, carbon dioxide, and the sun's energy produces food in the form of a sugar for the plant |
| oxygen | discarded as a waste product from the plant |
| cellular respiration | the process by which the energy stored in sugars is released for use by the cells of organisms |
| food chain | energy originally obtained from the sun is passed through a community of living organisms |
| producers | organisms that make their own food |
| consumers | organisms that get their food from other organisms |
| food | energy whichis passed to organisms in the food chain |
| energy | some is used; some is stored; some goes into the environment as heat |
| ecology | the study of living and nonliving things; their relationship to each other and their environment |
| community | all of the members of an ecosystem |
| ecosystem | the series of relationships between a community or organisms and the environment |
| habitat | the place where an organism lives |
| niche | the job/function of an organism within an ecosystem |
| organism | a complete living thing; you are an organism |
| population | the group of ONE KIND of organism living in an ecosystem |
| herbivore | a consumer that eats only plant tissue |
| carnivore | a consumer that eats only animal tissue |
| omnivore | a consumer that eats BOTH plant and animal tissue |
| decomposer | an organism that obtains its food from wastes and dead organisms |
| predators | an animal that hunts other animals for food |
| prey | animals that are hunted by other animals as food |