| A | B |
|---|
| Animal | a multicellular, living thing that can mover from place to place and relies on other organisms for energy. |
| Species | closely related living things that can mate to produce offspring that can also reproduce. |
| Population | a group of living things of the same species that live in a specific geographical area |
| Behavior | the way in which an animal acts in response to a particular situation |
| Social Behavior | the interaction between animals of the same species |
| Ethology | the study of behavior |
| Herbivore | an animal that eats only plants |
| Carnivore | an animal that only eats other animals |
| Omnivore | an animal that eats both plants and animals |
| Scavenger | an animal that eats the remains of other living things |
| Predator | an animal that eats all or part of another animal |
| Prey | an animal that is hunted and eaten by another animal |
| Symbiosis | a relationship in which two different living things live in close association with each other. |
| Parasite | a living thing that lives in/on an organism of a different species (the host) and usually harms the host |
| Host | an organism which is lived in/on by a parasite for food or shelter |
| Mutualism | a relationship between two species in which both benefit |
| Commensalism | a relationship between two living things in which one benefits and the other is unaffected |
