| A | B |
|---|
| Symbiosis | an interaction between two organisms where at least one organism relies on the other for basic needs |
| Mutualism | a symbiotic relationship where both organisms benefit |
| commensalism | a symbiotic relationship where at least one species benefits and the other is unaffected |
| parasitism | a symbiotic relationship where one organism benefits and the other is harmed |
| predator/prey relationship | where one organism kills another for food |
| digestive system | processes food |
| respiratory system | helps body absorb oxygen from the atmosphere, gets rid of carbon dioxide |
| circulatory system | moves chemical substances, mainly blood, through the body |
| nervous system | sends information throught the body (like a built-in gaggle or text messaging) |
| musculoskeletal system | holds up body and helps it physically move |
| diversity | differences among animals |
| vertebrate | animal that has backbone |
| invertebrate | animal that doesn't have backbone |
| animal | living thing that can move on its own, reproduce, obtain food outside of its body, and is multicellular |
| cell | basic unit of living things |
| bilateral symmetry | can cut animal in half and it would be the same on both sides- humans have this |
| radial symmetry | an animal that is organized like spokes on a wheel- a starfish has this |
| anatomy | detailed study of the body parts of animals |
