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science ch.9.2- 9.4

TermDefinition
bilateral symmetry one line that divides it into halves that are mirror images.
radial symmetry many lines of symmetry that all go through a central point.
larva an immature form of an animal that looks very different from the adult.
cnidarians invertebrates that have stinging cells and take food into a central body captivity.
polyp vase-shaped body plan
medusa bowl-shaped body plan
colony a group of many individual animals
coral reef built by cnidarians.
parasite an organism that lives inside or on another organism.
host the organism in or on which it lives.
free-living organism doesn't live or on other organisms.
scavengers they feed on dead or decaying material.
anus the far end of the tube
closed circulatory system it uses tubes called blood vessels.
Created by: s732268
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