| A | B |
| Arthropods | jointed-feet with and exoskeleton |
| invertebrates | animals without backbones |
| poriferans | pores |
| sponges | poriferan |
| coelenerates | contains a central cavity 1 opening |
| nematocyst | stinging cells on tentacles surronding the mouth |
| corals | Coelenerate |
| Sea Anemones | colorfuf plant appearence with petals or tentacles |
| Jellyfish | painful poisoneous sting |
| worms | flatworms, roundworms, segmented worms |
| Platyhelminthes | Flatworm |
| regeneration | able to reproduce a missing body part |
| Nematodes | Roundworms means threadlike |
| Roundworms | resembles a strand of spaghetti with pointed ends |
| Annelids | Segmented Worms, means ringed |
| Segemented Worms | earthworms |
| crop | sacklike organ that stores food |
| gizzard | organ used to grind up the food |
| fertilization | joining of egg and sperm to produce an offspring |
| Mollusk | soft fleshy body covered with a hard shell |
| uni | one |
| bi | two |
| mantle | covering over of the body that produces a hard covering |
| radula | resembles a file used to file off bits of plant matter |
| Echinodermata | spiny-skinned |
| Echinoderms | rough spiny skin |
| Starfish | Echinodermata |
| -derm | skin |
| exo | outside |
| exoskeleton | hard outer skeleton |
| Crusteans | Arthropodea |
| gills | used for breathing in the water |
| Centipedes | Hundred legs one pair of legs per sebement |
| Milliipedes | Thousand legs two pair of legs per segement |
| Arachnids | spiders, scorpions, ticks, and mites having 8 legs |
| Insecta | animals having 6 legs |
| Metamorphosis | changing form |
| larva | second stage of metamorphosis worm like state |
| pupa | secretion of a covering made of sild or another material the animal uses to grow into an adult |
| pheromones | scents released by animals to attract mates |
| camouflage | defense mechanism to hide from predators |