| A | B |
|---|
| producer | An organism that make food from carbon dioxide and water using energy from sunlight |
| consumer | Any organism that cannot make its own food |
| herbivore | A consumer that feeds on plants |
| carnivore | A consumer that feeds on animals |
| omnivore | A consumer that feeds on both plants and animals |
| scavenger | A carnivore that feeds on dead animals |
| predator | A carnivore that hunts for its food |
| prey | Animals that are hunted and killed for food |
| biotic | The living things in an ecosystem |
| abiotic | The non-living things in an ecosystem |
| food chain | A diagram that shows how energy flows from one organism to another |
| food web | Illustrates the complex energy relationships in an ecosystem |
| food | Molecules that store energy from sunlight which has been converted into chemical energy |
| organism | An individual living thing |
| population | Organisms of the same species living in a particular area |
| community | All the livng things in a particular area |
| ecosystem | The living community and the non-living surroundings in a particular area |
| competition | Two or more species or individuals trying to share a niche or use the same limited resource |
| habitat | the environment in which an organism lives |
| niche | An organism' role or way of life in its ecosystems |
| parts of a niche | An organism's food, predators, habitat and interactions with abiotic factors in the ecosystem |
| sunlight | source of all energy for an ecosystem |
| ten percent | % of energy passed from one level to the next in an energy pyramid |
| more plants and less meat | Eating lower on the food chain |
| used for life activities and lost as waste heat | What happens to the majority of the energy in a food chain or energy pyramid? |
| Under what conditions do organisms complete? | When limited resources exist. |
| What 3 options exist for the weaker organism in a competition? | Move away, find another food source or die. |
| predator | An organism that kills and eats another. |
| prey | An organism that is killed and eaten by another. |
