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9.2-9.4 Vocabulary
Term | Definition |
---|---|
bilateral symmetry | a line of symmetry that divides it into halves that are mirror images. |
radial symmetry | many lines of symmetry that all go through one point. |
larva | an 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 | the vase-shaped body plan. |
medusa | the bowl shaped body plan. |
colony | a group of many individual animals. |
coral reef | home to more species of fishes and invertebrates than any other environments on Earth. |
parasite | an organism that lives inside or on another organism. |
host | the organism in or on which it lives. |
free-living organism | an organism that does not live in or on other organism |
scavenger | they feed on dead or decaying material. |
anus | a place where the food comes out of |