| A | B |
|---|
| cytoplasma | constantly moving gel-like substance that surrounds the cell's organelles. |
| cell membrane | covers the cell's surface and controls the materials that enter and exit the cell. |
| mitochondria | supplies, stores, and produces energy for the cell. |
| endoplasmic reticulum | produces proteins and lipid components for the cell. |
| nucleus | contains the cell's DNA and serves as the control center for the cell. |
| vacuole | serves as a storage container for water and other materials. |
| cholorplast | the place in plant cells that contains chlorophyll and where photosynthesis occurs. |
| cell wall | a structure found in plant cells that provides strength and support to the cell membrane. |
| mollusk | invertebrate with soft unsegmented bodies |
| bivalves | mollusks that have two shells held together by hinges or strong muscles |
| gastropods | Mollusks with a single shell or no shell |
| cephalopods | a mollusk whose feet are adapted to form tentacles around their mouths |
| radula | A flexible ribbon of tiny teeth in mollusk |
| kidneys | an organ that removes waste from animals' cells |
| crustaceans | an arthropod with two or three body sections, three pairs of appendages for chewing |
| arachnids | arthropod with only two body sections and eight legs |
| insects | arthropod with three body sections, 6 legs, 1 pair of antennae, and 1 or 2 pair of wings |
| centipede | arthropod with one pair of legs on each segment |
| millepede | arthropod with two pairs of legs on each segment |
| molting | the process of shedding an outgrown exoskeleton |
| exoskeleton | an outer skeleton that protects an animal and prevents it from dying |
| abdomen | the hind section of an arachnid |
| metamorphis | a dramatic change in an animal's body |
| chitin | materials that make up an arthropod's exoskeleton |
| larva | egg that hatches resembles a small adult |
| thorax | the middle section of an insect |
| pupa | the second stage of complete metamorphis |
| camouflage | a protective coloration in which an insect blends in with its surroundings |
| nymph | young looks like adult |
| complete metamorphis | has four different stages: egg, larva, pupa, and adult. Young looks different from adult. |
| pheromone | a chemical released by one animal that affects the behavior of another animal of same species |
| organ | a group of tissues working together to perform a specific job. |
| vertebrate | an animal with a backbone |
| adaptation | something that helps an animal to survive |
| carnivore | meat eater |
| herbivore | plant eater |
| coral reefs | formed from the skeletons of dead corals |
| platyhnematoada | worms belong to this phylum |
| regeneration | the ability of an organism to re-grow lost body parts |
| parasites | organisms that grow in or on other organisms |
| gastropods | snails and slugs belong to this group of mollusks |
| external skeleton/shell | an arthropod tough outer covering |
| ocean | where most crustaceans live |
