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Chapter 9 and 10 Key terms!!

By
    Charley Bramson


Across
Organisms that feed on dead or decaying material
A muscular opening at the end of the rectum through which waste material is eliminated from the body
Animals with a backbone
Invertebrates that have stinging cells and take food into a central body cavity
Animals without backbones
Animals that eat both plants and animals
Animals that eat only plants
An arachnid's hind section
Invertebrates with soft, unsegmented bodies that are often protected by a hard outer shell
An immature form of an animal that looks very different from the adult
Animals that eat only other animals
An organism that lives inside or on another organism
Down
A bowl-shaped body plan
A process in which an animals body undergoes dramatic changes in form during its life cycle
An outer skeleton
An appendage attached to the head that contains sense organs
A flexible ribbon of tiny teeth, to obtain food
An insect's midsection where the legs and wings are attached
Organs that remove oxygen from the water
A stage where the insect looks like an adult without wings