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Invertebrate

2010-07-02T01:05:47Z

ChuckD2010:

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:

*[[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| ]]

Invertebrate

2010-07-02T01:02:54Z

ChuckD2010:

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 things are invertebrates, including [[arthropod]]s, [[mollusc]]s, and [[bacteria]].

[[Shark]]s and [[sting ray|rays]] are a special class under this description, since they do not have bony [[skeleton]]s, and hence no spine. They do, however, have a similar structure to vertebrates. They are called [[notochord]]s.

The phyla contained in Invertebrata are:

*[[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| ]]

Coelenterate

2010-06-03T20:03:55Z

ChuckD2010:

Coelenterates, also known as [[Cnidarians]] (alternate phylum name) are a phylum of marine invertebrates.

They are divided into 4 major classes:
{| class="wikitable"
|-
! Anthozoa
! Hydrozoa
! Scyphozoa
! Cubozoa
|-
| [[Coral]] & [[sea anemone]]s
| Hydroids, Portuguese Man-o-War
| [[Jellyfish]]es
| Box Jellyfish
|}

Most Coelenterates obtain prey by catching small planktonic creatures with [[nematocyst]]s located in their tentacles.

[[Category:animals]][[Category:invertebrates]]

Coelenterate

2010-06-03T20:01:29Z

ChuckD2010: Created page with 'Coelenterates, also known as Cnidarians (alternate phylum name) are a phylum of marine invertebrates. They are divided into 4 major classes: {| class="wikitable" |- ! Anthoz…'

Coelenterates, also known as [[Cnidarians]] (alternate phylum name) are a phylum of marine invertebrates.

They are divided into 4 major classes:
{| class="wikitable"
|-
! Anthozoa
! Hydrozoa
! Scyphozoa
! Cubozoa
|-
| [[Coral]] & [[Sea Anemone]]s
| Hydroids, Portuguese Man-o-War
| [[Jellyfish]]es
| Box Jellyfish
|}

Most Coelenterates obtain prey by catching small planktonic creatures with [[nematocyst]]s located in their tentacles.

[[Category:animals]][[Category:invertebrates]]