Term
| 4 characteristics of animals |
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Definition
-eukaryotic
-lack cell walls
-multicellular
-heterotrophs that invest food |
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Term
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Definition
| animals without backbones 95% of all animals and most live in water |
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Term
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Definition
| animals with backbones FOR EVERY KNOWN VERTEBRATES THERE ARE 19 INVERTEBRATES |
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Term
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Definition
| invertebrates and some are sessile |
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Term
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Definition
| anchored to the gorund and cant move, lack true organs and tissues, collar cells, falgella, sexual or asexual |
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Term
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Definition
| invertebrate, ex. jellyfish, radial symmetry, tentacles with stinging cells |
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Term
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Definition
| invertebrate, bilateral symmetry, simplest bilateral animals, 3 tissue layers: ectoderm, mesoderm, endoderm |
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Term
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Definition
| invertebrate, bilateral symmetry, complete digestive tract with mouth and anus |
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Term
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Definition
| invertebrates, ex. segmented worms, bilateral symmetry, coelem, closed circulatory sysytem, 3 types: sand worms, earth worms, parasitic leeches |
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Term
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Definition
| invertebrates, ex. snails, ONYL INVERTEBRATES TO HAVE MANTEL AND SHELLS, radula, open circulatory system 3 groups: gastropods (snails and slugs), byvalves (oysters, clams, muscles), cephalopods (squid, octopus) |
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Term
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Definition
| invertebrate, ex. starfish, body parts extend off center like SPOKES ON A WHEEL, rough skin, water vascular system, can regrow body parts ex: sea urchins, sea stars, brittle stars, sea lillies, sea cucumbers, sea daisies |
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Term
| main difference between round worms, flat worms, and annelids |
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Definition
| have same tissues but are organized differently |
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Term
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Definition
| body parts arranged like pieces of a pie around immaginary central axis |
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Term
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Definition
| polyp body form, mostly sessile, tentecles radiating from one end |
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Term
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Definition
| medussa body form, umbrella shaped formed with fringes of tentacles around the lowere edge |
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