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Kingdom Study 3
| Question | Answer |
|---|---|
| adaptation | structures or behaviors that allow animals to perform these basic functions in their environments |
| fertilization | a new organism begins to form when egg and sperm join |
| vertebrate | Organism with a backbone |
| invertebrate | organism without a backbone |
| Bilateral symmetry | one line that divides into halves; mirror images |
| Radial symmetry | many lines of symmetry that all go through one center point |
| larva | immature form of an animal that looks very different from the adult |
| cnidarian | invertebrates that have stinging cells, and take food into a central body cavity |
| polyp | vase-shaped body plan |
| medusa | bowl-shaped body plan |
| parasite | organisms that live inside or on another organism |
| host | living organism that provides a source of energy for a virus/organism |
| scavenger | feed on dead/decaying material |
| closed circulatory system | blood moves only within a connected network of tubes called blood vessels |
| mollusk | invertebrate with a soft, unsegmented body; most protected by a hard outer shell |
| open circulatory system | circulatory system where the heart pumps blood into open spaces in the body & blood is not confined to blood vessels |
| gill | organ that removes oxygen from water |
| gastropod | mollusk with a single shell or no shell |
| cephalopod | ocean-dwelling mollusk whose foot is adapted as tentacles that surround its mouth |
| bivalve | mollusk that has 2 shells held together by hinges and strong muscles |
| herbivore | plant eating organism |
| carnivore | meat eating organism |
| omnivore | consumer that eats both plants and animals |
| radula | flexible ribbon of tiny teeth in mollusks |
| arthrodpod | invertebrate that has external skeleton a segmented body, and joined appendages |
| exoseleton | waxy,waterproof outer shell or outer skeleton that protects the animal and helps prevent evaporation of water |
| molting | process of shedding an outgrown exoskeleton |
| crustacean | arthropod that has two or three body sections, five or more pairs of legs, and two pairs of antennae |
| complete metamorphosis | type of metamorphosis characterized by four dramatically different stages |
| gradual metamorphosis | type of metamorphosis in which an egg hatches into a nymph that resembles an adult, and which has no distinctly different larval stage |
| arachnid | an arthropod with two body sections, four pairs of legs, and no antennae |
| insect | arthropod with three body sections, six legs, one pair of antennae, and usually one or two pairs of wings |
| thorax | arthropod's midsection, to which its wings and legs are attached |
| pupa | the third stage of complete metamorphosis, in which insect changes from a larva to an adult |
| nymph | stage of gradual metamorphosis that usually resembles the adult insect |
| echinoderm | radically symmetrical invertebrate that lives on the ocean floor and has an internal skeleton and a water vascular system |
| endoskeleton | internal skeleton |
| water vascular system | system of fluid-filled tubes in an echinoderms body |
Created by:
ReignsGirl
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