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- Skeleton (2955 bytes)
7: ...iameter of the shell is enlarged without altering its shape. On the other hand, arthropods shed their...
9: ... a skeleton consisting entirely of cartilage and without any calcified bones at all, for example [[sha...
11: ...unding the fluid-filled pouch, creating pressure within the pouch that causes movement. Animals such ... - Body cavity (2315 bytes)
1: ...nput of food and ejection of waste. It is filled with liquid that acts as a lubricant allowing the vis...
3: ...ave a cavity known as a coelom -- presumably inherited from a common ancestor. They are divided into t...
5: ...lom is reduced in size, and the principal body cavity is part of the [[blood]] circulation system call...
7: ...d into "subcavities" such as the [[pericardial cavity]] around the heart. The number and placement of ...
9: ...astric pouches ("stomachs" sort of) in [[cnidaria|cnidarians]]. - Animal (16429 bytes)
10: [[Cnidaria]]<br>
51: ...e plural, and ultimately from ''anima'', meaning vital breath or soul.
55: ...tive chamber, with one or two openings. Animals with this sort of organization are called metazoans, ...
57: ... shells, bones, and spicules. During development it forms a relatively flexible framework upon which ...
63: ...rthenogenesis]], where fertile eggs are produced without mating, or in some cases through fragmentatio... - Animals (10378 bytes)
1: ....jpg|400px|thumb|right|photo representing great white shark]]
2: ...iving organisms. While they exhibit immense diversity in form and function, they share a set of common...
7: *Heterotrophic Nutrition: Unlike plants, animals cannot synthesize thei...
8: ...ent. This system ranges from simple nerve nets in cnidarians (jellyfish, for instance) to complex brains in ...
9: ...during certain life stages. This movement is facilitated by specialized organs like muscles and, in ma... - Jellyfish (6276 bytes)
2: ....jpg|200px|Little Blue Jellyfish]] | caption = [[Little Blue Jellyfish]]}}
5: {{Taxobox_phylum_entry | taxon = [[Cnidaria]]}}
15: ...ies are found in each of the world's [[ocean]]s, with a few [[species]] living in [[fresh water]]. Mos...
18: ...nt and is also the form most people are familiar with.
20: ...oon jelly]] (Aurelia), the eggs become lodged in pits on the oral arms, which form a temporary brood c... - Polyp (4768 bytes)
1: ...o forms of individuals found in many species of [[cnidaria]]ns. The two are the polyp or hydroid and the [[m...
3: ...''[[Hydrozoa]]'', however, the individual may be either a polyp or a medusa.
5: ...elements formed by cells which have migrated into it from the ectoderm.
7: ...ame time paralysed or killed, and by means of longitudinal [[muscular fibril]]s formed from the cells ...
9: ...ores may occur at the tips of the tentacles. Thus it is seen that a polyp is an animal of very simple ... - Sea nettle (4594 bytes)
5: {{Taxobox_phylum_entry | taxon = [[Cnidaria]]}}
15: ...t common along the coasts and feared by swimmers. Its painful [[sting]]s are rated from moderate to se...
17: ...scular [[cavity]] that is used for [[digestion]]. It has [[tentacle]]s that surround the mouth to capt...
21: ... gut. Second, the male releases [[sperm]] through its mouth column. Third, the sperm has to swim into ...
23: ...ephyra will grow into an adult medusa, completing its complex life cycle. The jellyfish will live for ... - Sea anemone (3337 bytes)
5: {{Taxobox_phylum_entry | taxon = [[Cnidaria]]}}
14: ...es to the mouth for digestion inside a central cavity.
16: ...her close relations to the sea anemone are the solitary, [[tube-dwelling anemone]]s and the [[Hydra (b...
18: ...vely maintain. The preponderance of species inhabit tropical reefs, although there are species adapte...
20: ... it is protected by the anemone. The anemone benefits because the anemone gets food scraps from the cl... - Sea anemone. (689 bytes)
1: ...es to the mouth for digestion inside a central cavity.
3: ...eriantharia). All anemones are marine; Freshwater cnidarians that resemble them (called hydras) are included... - Coral (8108 bytes)
2: ...[gastrovascular]] marine [[cnidaria]]ns (phylum [[Cnidaria]]; class [[Anthozoa]]) existing as small [[sea an...
4: ...pths of 60 m (200 ft). Corals breed by spawning, with many corals of the same species in a region rele...
11: ...d in other orders of subclass [[Zoantharia]]: to wit, the [[black coral]]s (order [[Antipatharia]]) an...
17: ...sed of a form of calcium carbonate known as [[calcite]].
18: ...pink red coral.jpg|thumb|left|400px|grouper fish with pink red coral ]] - Moon Jelly (10363 bytes)
2: ...aauritakils1.jpg|200px|]]| caption = ''Aurelia aurita''}}
5: {{Taxobox phylum entry | taxon = [[Cnidaria]]}}
10: {{Taxobox species entry | taxon = '''''A. aurita'''''}}
12: ...imple | color = pink | binomial_name = Aurelia aurita}}
14: ...es found in the genus ''Aurelia'' besides ''A. aurita'' are: ''A. labiata'', ''A. limbata'', ''Aurelia...
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