Answer :

(A)- iv


In phylum “Coelenterata”, organism may exist only in two different body forms namely a “polyp” and a “medusa”.


Hydra is an example of polyp.



Hydra - a polyp


(B)- iii


The phylum “Platyhelminthes” includes flat worms.


Tapeworm is a type of flatworm. The binomial name of tapeworm is


“Taenia solium”.


(C)- ii


The phylum “Echinodermata” which consists only marine animals. These are spiny-skinned animals. Star fish belongs to this phylum. Some other animals are sea urchin, sea lily etc.



Starfish- Echinodermata


(D) – i


Mollusca is the second largest phylum of animal kingdom.


i. These are soft bodied animals without segmentation.


ii. The body is covered by an outer shell.


iii. Example: snail



Snail – Mollusca


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