| A | B |
|---|
| Populations | the number of inhabitants in a place belonging to a specific subgroup: population of humans |
| Communities | Populations in the same area who are interacting |
| Ecosystem | living and nonliving parts in an environment |
| Relationships | a connection between organisms |
| Predator | An animal that hunts another organism |
| Prey | An animal that is hunted for food |
| Parasite | an organism that lives on or in another organism that harms it |
| Host | An organism that is harmed by another organism that lives on or in it |
| Producer | An organism whose cells can make their own food |
| Consumer | An organism that feeds on plants or other animals |
| Decomposer | An organism, usually bacteria or fungus, that breaks down dead organisms |
| Biotic | Refers to Living things |
| Abiotic | Refers to nonliving things (never were living) |
| Photosynthesis | Process where plants use the sun's energy to create food |
| Food Web | Interconnected food chains in an ecosystem |
| Energy Pyramid | A graphic that shows the flow of energy through each trophic level of an ecosystem |
| Heterotroph | An organism that gets its food from other organisms |
| Autotroph | An organism whose cells can make its own food |
| Herbivore | An animal that eats plants |
| Carnivore | An animal that eats other animals |
| Ominvore | An animal that eats both plants and animals |
| Scavenger | An animal that eats other things - usually scraps or things that have died previously |
