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Stack #18666
chapter 10 vocab
| Word | Definition |
|---|---|
| mollusk | An invetebrate with a soft, unsegmented body; most are protected by a hard outer shell. |
| open circulatory system | a circulatory system in which the heart pumps blood into open spaces in the body, and blood is not confined to vessels |
| gastropod | a mollusk with a single shell or no shell |
| herbivore | a consumer that eats only plants |
| carnivore | a consumer that eats only meat |
| radula | a flexible ribbon of tiny teeth in mollusks |
| bivalve | a mollusk that has 2 shells held together by hinges and stong muscles |
| omnivore | a consumer that eats both plants and animals |
| cephalopod | an ocean- dwelling mollusk whose foot is adapted as tentacles that surround its mouth |
| arthropod | an invertebrate that has an external skeleton, a segmented body, and jointed appendages |
| exoskeleton | a waxy, waterproof outershell or outer skeleton that protects the animal and helps prevent evaporation of water |
| molting | the process of shedding an outgrown exoskeleton |
| antenna | an appendages on the head of an arthropod that contains sense organs |
| crustacean | an arthropod that has two or three body sections, five or more legs and two pairs of antennae. |
| metamorphosis | a process in which an animal's body undergoes dramatic changes in form during its life cycle |
| arachnid | an arthropod with two body sections, four pairs of legs, and no antennae |
| abdomen | the hind section of an arthropod |
| insect | an arthropod with three body sections, six legs, one pair of antennae, and usually one or two pairs of wings |
| thorax | an arthropod's mid- section, to which its wings and legs are attached |
| complete metamorphosis | a type of metamorphosis characterized by four dramatically different stages |
| pupa | the third stage of complete metamorphosis, in which an insect changes from larva to an adult |
| gradual metamorphosis | a type of metamorphosis in which an egg hatches into a nymph that remembles an adult, and which has no distinct larval stage |
| nymph | a stage of gradual metamorphosis that usually remsembles the adult insect |
| food chain | a series of events in which one organism eats another and obtains energy |
| ecology | the study of how organisms interact with their environment |
| producer | an organism that can make its own food |
| consumer | an organism that obtains energy by feeding on other organisms |
| decomposer | an organism that breaks down chemicals from wastes and dead organisms, and returns important materials to the soil and water |
| pollinator | an animal that carries pollen from one plant to another of the same species, enabling plants to reproduce |
| pesticide | a chemical designed to kill a pest animal |
| biological control | a natural predator or disease used to combat a pest insect |
| echinoderm | a radially symmetrical invertebrate that lives on the ocean floor and has an internal skeleton and water vascular system |
| endoskeleton | an internal skeleton |
| water vascular system | a system of fluid- filled tubes in an echinoderm's body |
| tube feet | extensions of an echnoderm's water vascular system that stick out from the body and function in movement and obtaining food |
Created by:
lizg.
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