| A | B |
|---|
| Anterior | The front side of an organism |
| Antibodies | Proteins that bind to foreign cells marking them for destruction. |
| Anus | The place where wastes are released. |
| Appendages | The scientific name for limbs. |
| Bilateral Symmetry | If you cut an organism in half you would have two equal sides. |
| Body Plan | The general structure of any organism. |
| Carnivores | Animals that eat only meat. |
| Differentiate | When cells become specialized to their various purposes in the body. |
| Digest | Breaking down nutrients so the body can absorb nutrients. |
| Dorsal | The top or upper back of an organism. |
| Embryos | Small masses of unspecialized cells that adult animals develop from. |
| Gills | Large areas exposed to water that allow an animal to absorb dissolved oxygen. |
| Gland | Organ that produces a particular substance. |
| Herbivores | Animals that eat only plants. |
| Hormones | Chemical messengers that bind to specific proteins receptors to influence a change in cells. |
| Immune System | Set of organs and cells that help to protect the body from foreign invaders. |
| Kidneys | Organs that remove wastes for the blood and other bodily fluids. |
| Lungs | Large organs that allow land animals to pull in oxygen and release CO2. |
| Metamorphosis | A process which larva will change to adults in the arthropod phylum. |
| Motile | Animals that move around. |
| Notochord | The stiff dorsal rod that helps organizes the embryo’s development. |
| Omnivores | Animals that eat both plants and animals. |
| Organ | Layers of tissues working together to perform a similar function. |
| Pharyngeal Slits | Side slits in chordates that will become either gills, ears, or other specialized structures. |
| Pheromones | Special hormones released by animals to attract a mate or alert about danger or food. |
| Posterior | The backside or rear of an organism. |
| Predators | Animals that kill other animals for food. |
| Radial Symmetry | When an animal looks like a wheel and there are not two equal sides but many equal sides. |
| Regenerate | When an animal can grow back missing parts. |
| Sessile | Animals that do not move around |
| Tissues | Layers of cells working together to perform a similar function. |
| Ventral | The belly or bottom side of an organism. |
| Vertebrae | The bones that make up the back bone in chordates. |
