Question

define phylum colentrata.

Answer 1

Coelentrata are animals living in water. They show more body differentitation. There is a cavity in the body. The bady is made up of 2 layer of cells , one makes up cells on the outside of the body , and the makes the inner lining of the body . Some of these species live in colonies (corals), while other have a solitary life span (Hydra).

Answer 2

$\textbf{hey.. mate here's yur ans..}$
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$\textbf{PHYLUM COELENTRATA}$
--> THESE ANIMALS WEAR STINGING CELLS HENCE, THE NAME OF PHYLLUM IS CNIDERIA (stinging animals)
-->THESE ANIMALS ALSO WEAR COELENTRATE CAVITY IN BODY ACCORDINGLY KNOWN AS COELENTRATE

$\textbf{HABITAT}$-->CNIDERIANS ARE MOSTLY FOUND IN M. W(marine water) but SOME ARE FOUND IN F. W(FRESH WATER) FOR EG--> HYDRA

$\textbf{HABIT}$-->SOME MEMBERS OF CNIDERIA ARE SOLITARY EG.. HYDRA AND AURELIA

$\textbf{BODY FORM}$
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1)POLYP FORM-->UPRIGHT,,CYLINDRICAL,,MOSTLY FIXED/SESSILE
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2) MEDUSA FORM--> DOWNWARDLY DIRECTIONAL MOUTH UMBRELLA/FLOWER SHAPED-->MOTILE PHASE,, SEXUAL PHASE
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$\textbf{SYMMETRY}$
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> CNIDERIANS ARE RADIALLY SYMMETRICAL
>BUT SEA ANEMONE IS BIRADIALLY SYMMETRICAL
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$\textbf{GERM LAYERS}$
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CNIDERIANS ARE HAVE 2 GERM LAYERS THAT IS THEIR BODY IS FORM OF 2 GERM LAYERS
1)OUTER ECTODERM
2)INNER ENDODERM

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LEVEL OF ORGANISATION
>THEY HAVE TISSUE $\textbf{LEVEL OF ORGANISATION}$
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$\textbf{BODY CAVITY}$
>THEY HAVE BLIND SAC TYPE OF BODY CAVITY--->SINGLE OPENING
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$\textbf{HOPE IT HELPS U}$ ✌