The correct option is D Sedentary #10; #10; #10; #9; #10; #9; #10; #9; #10; #9; #10; #10; #10;Obelia #10;undergo a typical Cnidaria ...

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Phylum Cnidaria

Obelia is

Question

Obelia is

Sedentary

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Attached but capable of locomotion

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Motile

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Free floating

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Solution

The correct option is D Sedentary

Obelia undergo a typical Cnidarian life cycle with polyp and medusa satge alternating. The planula stage live in a free-swimming stage for some time but subsequently attach themselves to a solid surface. The polyp develops and reaches adault stage whilst being attached/ sedentary. So, the correct asnwer is 'Sedentary'.

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