| A | B |
|---|
| anterior | The front of an organism |
| anus | passes digestive waste out of the body |
| aortic arches | serves as hearts in the earthworm |
| chitin | The hard exoskeleton of an insect |
| closed circulatory system | circulatory system in which blood flows through vessel |
| cold blooded | Body temperature changes with temperature of environment |
| crop | Digestive organ used for storing food |
| dorsal | The backside of an organism |
| endoskeleton | A bony internal skeleton |
| exskeleton | aTough outer covering made of hard material secreted by the insect. |
| ganglia | Tiny groups of nerve cell bodies |
| gill slits | Structures in water animals that develop into true gills. |
| gizzard | Digestive organ that grinds food into small pieces. |
| hemoglobin | Red substance in the blood that increase its ability to carry oxygen. |
| heterotrophs | Organisms that cannot make own food |
| invertebrate | An animal without a backbone` |
| malphighian tubules | Excretory organ of the insect |
| mammary glands | Organs in mammals that produce milk for feeding their young |
| marine | Salt water organisms |
| marsupials | Pouched mammals- example Kangaroo, opossum |
| metamorphosis | A series of changes in the life cycle of an organism |
| monmtremes | Egg-laying mammals- example duck billed platypust, spiny anteater |
| motile | Organisms that are able to move form place to place @ sometime in thier life cycle |
| nephridia | Excretory organs of worms |
| notochord | A firm rod that runs along the dorsdal side of an organism and supports the body |
| sessile | Animals that attach themselves to an object and stay there all their lives. |
| spiracles | Small openings located along the sides of the abdomen of an insect that are used for breathing. |
| stinging cells | Structures located on tentacles of jellyfish that are used to paralyze food. |
| tentacles | String like appedages. |
| vertebrates | Animals with a backbone. |
| warm-blooded | Animals that maintain a constant body temperature even when the temperature around them changes. |
