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Stack #4606778
| Question | Answer |
|---|---|
| Exoskeleton | External skeleton, a tough waterproof outer covering that protects, supports, and help helps prevent evaporation of water from the body of many in invertebrae‘s |
| Endoskeleton | The internal skeleton, structural support system within the body of an animal |
| Share the basic definitions of an invertebrae | An animal with no backbone |
| List the eight main groups of invertebrae’s | Sponges, mollusk, arthropods , echinoderms, cnidarians, flatworms, roundworms, segmented worms |
| Sponges | Asymmetrical, invertebrates, no tissue or organs, they stay in one place like plants example: sea sponge |
| Cnidarians | Invertebrates with stinging cells, Take food into a central body cavity. They have radial symmetry. Example:jelly fish |
| Flatworms | Flat soft body, spots on head example:tape worm |
| Roundworms | Smooth, thin tubes, have a mouth and anus example:heartworm |
| Segmented worms | simplest animal with a brain, Linked body (segments) example:earthworm |
| Mollusk | Invertebrates with soft, Unsegmented bodies that are often protected by a hard shell. Mantle that covers their internal organs foot used for crawling, digging, or catching prey example: snail = gastropod, clam= bivalve, squid= cephalopod |
| Arthropod | An invertebrae that has an external skeleton, a segmented body, and jointed appendages example= insects, spiders, crabs |
| Echinoderms | A radially symmetrical marine invertebrae that has an internal skeleton and a system of fluid filled tubes example= sea star, sea cucumber |
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