Which of the following statements is NOT true | vedclass

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Question

(C) Hemichordates were previously considered a sub-phylum under Phylum Chordata,but they are now placed as a separate phylum. They are $NOT$ protochor

Vedclass · Accepted Answer

The circulatory system is simple and closed type.

Vedclass · Answer

(C) Hemichordates were previously considered a sub-phylum under Phylum Chordata,but they are now placed as a separate phylum. They are $NOT$ protochordates because they lack a true notochord; they possess a 'stomochord' which is a rudimentary structure. The digestive tract is complete and straight. The circulatory system is of the open type,not closed. Excretion occurs through the proboscis gland. Therefore,statements $A$ and $C$ are technically incorrect,but in the context of standard biology questions,the circulatory system being 'closed' is a definitive error as it is 'open'.

Which of the following statements is $NOT$ true for Hemichordata?

Similar Questions

The body of hemichordates is divided into

The body is divided into parts like proboscis,collar,and trunk.

Which of the following is the excretory organ of Hemichordata?

Which of the following animals are exclusively marine and generally tube-dwelling?

$A$ : In Balanoglossus,proboscis is involved in excretion.
$R$ : Glomerulus is present in proboscis.

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