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Question

A colonial protozoan having choanocyte like flagellate cells that forms connecting link between protozoa and porifera is

A
Protoflagellate
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B
Amoebospongia
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C
Proterospongia
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D
Phanerospongia
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Solution

The correct option is D Proterospongia
Proterospongia is a single celled aquatic organism that belongs to class of choanoflagellates as it has specialised flagellated cells called choanocytes or collar cells. It is considered as a connecting link between protozoan and porifera because it forms colonies like protozoans and has choanocytes like porifera.
So, the correct answer is 'Proterospongia'.

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