| A | B |
|---|
| carnivore | an animal that feeds on plant-eating and other carivores. |
| cnidarians | a hollow bodied animal with stinging cells |
| coelenterates | aquatic invertibrate with radially symmetrical, saclike bodies, and a single internal cavity |
| communications | the exchange of signals or messages such as flashing light, odors, bright light, or sounds performed by one animal that informs or influences another animal. |
| complete metamorphisis | a devolopment in an animal that involves a process consisting of four stages: egg, larva, pupa, and adult |
| digestive system | a group of organs that act together to take in food and change it to form cells that the body can use |
| echinoderm | a marine invertebrate that has a mineral skeleton with spines. |
| exoskeleton | any hard, external covering |
| fertilization | the process in which a male and a female gametecombine to form a zygote |
| flatworm | a simple animal that has a flat, leglessbody with an identifiable head and tail |
| gestation | the time between fertilization and the birth of an offspring |
| incomplete metamorphisis | devolopment of animals that involves three stages:egg, nymph and adult |
| mitosis | the process in which a cell's nucleus divides forming two new cell's with indentical genetic material |
| mullosk | soft-bodied invertebrate that live on land or in fresh or salt water |
| omnivore | an animal that feeds on the both plant and animal material that is living in humans |
| radula | a tongue- like organ of some mollusks which has rows of teeth for tearing and scraping food |
| roundworm | a invertebrate that has a round tube-like body tapering to a point at each end |
| segmented worms | a worm that has a tube- shaped body divided into segments that are similar in structure |
| sponge | the simplest kind of animal, having no definite shape and living attached to one spot |
| vertebra | one of the bones in the backbone |
