| A | B |
|---|
| animals are | many-celled |
| eukaryotic organism | animals |
| animals must | find and digest their food |
| consumers | animals can not make their own food |
| invertebrates | animals that do not have backbones such as a jellyfish or insect |
| vertebrates | animals with backbones such as the human |
| the arrangement of an animal's body plan | symmetry |
| bilateral symmetry | body parts arranged the same on both sides of the body |
| asymmetrical | no definite body shape or arrangement |
| radial symmetry | arranged around a central point like a hub on a wheel |
| advancements made in medicine today are due to.... | experiments that were performed on animals to try out new drugs |
| cyst | young worm with a protective covering that is found in uncooked meat |
| plants | scientist used to think that sponges belonged in this catagory but they did not make their own food so they reclassified them |
| medusa | body that is bell shaped |
| polyp | body plan that is shaped like a vase |
| hermaphrodites | animals that produce both sperm and egg |
| sessile | to stay in one place, without movement |
| regeneration | to replace or grow new body parts |
| sponges | no symmetry |
| pores | the small openings found on the body of a sponge |
| collar cells | help sponges to feed |
| tentacles | structures on some simple invertebrates that help them capture food |
| sharp structures found on sponges | spicules |
| sponges reproduce | asexually |
| asexually | to reproduce without sex |
| cnidarians | radial symmetry only |
| must digest food before it can be used for nutrients and energy | animals |
| animals | are not producers |
