Proboscis, collar and trunk coelom represent fine coelomic cavities in

Herdmania

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Amphioxus

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Balanoglossus

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None of the above

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Solution

The correct option is B Balanoglossus
Balanoglossus is an ocean-dwelling acorn worm genus. They possess a long protrusible proboscis.
The tentacular apparatus, which is present in some hemichordates is of lysosomal (collar).
Balanoglossus also possess the trunk in which the gonads are present.
So, the correct answer is option C.

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Similar questions

Q. The body is distinguished into proboscis, collar, and trunk in:

Assertion [A] : In hemichordates, body is divided into proboscis, collar and trunk.

Reason [R] : The proboscis helps in digestion.

Read the following statements and choose the correct option.

Statement 1 : In hemichordates, body is divided into proboscis, collar and trunk.
Statement 2 : The proboscis helps in digestion in hemichordates.

Which phylum has a reduced coelomic cavity?

Q. Assertion :The coelomic cavity of a leech is mostly filled with botryoidal tissue formed of branching tubular cells. Reason: Hence, the coelomic cavity is reduced to four longitudinal channels and their branches.

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