Difference between revisions of "Invertebrate"
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| − | An '''invertebrate''' (in contrast to a [[vertebrate]]), is an [[animal]] with no [[spine]]. | + | An '''invertebrate''' (in contrast to a [[vertebrate]]), is an [[animal]] with no [[spine]].<ref>Wile, Dr. Jay L. ''Exploring Creation With Biology''. Apologia Educational Ministries, Inc. 1998</ref> |
| − | [[ | + | Most living animals are invertebrates, including [[arthropod]]s, [[mollusc]]s, and [[annelids]]. |
| − | [[ | + | The phyla contained in Invertebrata are: |
| − | [[Category: | + | |
| + | *[[Protozoan|Protozoa]] - Mostly simple, single-celled organisms | ||
| + | *[[Porifera]] - [[Sponge]]s | ||
| + | *[[Coelenterata]] - Hydra, [[jellyfish]], [[sea anemone|anemones]] and [[coral]]s | ||
| + | *[[echinoderms|Echinoderm]]a - [[Starfish]], [[sea urchin]]s and [[sea cucumber]]s | ||
| + | *[[Annelid]]a - [[Worm]]s | ||
| + | *[[Brachiopod]]a - [[Bivalve]]s, such as [[mussel]]s and [[clam]]s | ||
| + | *[[Polyzoa]] - Single celled critters that usually form colonies | ||
| + | *[[Mullusc]]a - [[Whelk]]s, [[ammonite]]s, [[cuttlefish]], [[squid]]s, [[snail]]s, etc. | ||
| + | *[[Arthropod]]a - [[Crustacean]]s, [[insect]]s, [[arachnid]]s, [[trilobite]]s, etc.<ref>Invertebrate Paleontology, Henry Woods, Cambridge University Press, 8th Edition (1946)</ref> | ||
| + | |||
| + | ==References== | ||
| + | |||
| + | <references/> | ||
| + | |||
| + | [[Category:Invertebrates| ]] | ||
Latest revision as of 01:05, July 2, 2010
An invertebrate (in contrast to a vertebrate), is an animal with no spine.[1]
Most living animals are invertebrates, including arthropods, molluscs, and annelids.
The phyla contained in Invertebrata are:
- Protozoa - Mostly simple, single-celled organisms
- Porifera - Sponges
- Coelenterata - Hydra, jellyfish, anemones and corals
- Echinoderma - Starfish, sea urchins and sea cucumbers
- Annelida - Worms
- Brachiopoda - Bivalves, such as mussels and clams
- Polyzoa - Single celled critters that usually form colonies
- Mullusca - Whelks, ammonites, cuttlefish, squids, snails, etc.
- Arthropoda - Crustaceans, insects, arachnids, trilobites, etc.[2]