| A | B |
|---|
| organisms | living things that exist on Earth |
| animal | horse, dog, worm |
| plant | pine tree, cactus, ivy |
| fungus | yeast, slime, mold |
| protist | amoeba, paramecium, algae |
| moneran | bacteria |
| vertebra | backbone |
| vertebrates | animals that have a backbone |
| invertebrate | animals without backbones |
| exoskeleton | hard outer covering that protects an animal's body and gives it support |
| fish | vertebrates that live in water |
| gills | feathery parts on the sides of a fish's head ; allows it to breath |
| amphibian | vertebrate that lives in water after hatching but lives on land as an adult |
| reptile | vertebrate that has dry,scaly skin ; lays eggs that have a leathery shell |
| birds | vertebrates that have wings and are covered with feathers |
| mammals | vertebrates that have hair and feed milk to thier young |
| spong | animals that have bodies full of holes and skeletons made of spiky fibers |
| molts | shedding of exoskeleton |
| leeches | bloodsuckers |
