Which of the following is not a character of | vedclass

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(A) The $stomochord$ in $Hemichordata$ is not mesodermal in origin; it is an ectodermal structure. Because it is not a true notochord (which is mesode

Vedclass · Accepted Answer

Presence of stomochord which is mesodermal in origin

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(A) The $stomochord$ in $Hemichordata$ is not mesodermal in origin; it is an ectodermal structure. Because it is not a true notochord (which is mesodermal),these organisms are classified as non-chordates. The $stomochord$ is a blind projection arising from the roof of the buccal cavity,also known as the buccal diverticulum. Therefore,the statement claiming it is mesodermal in origin is incorrect.

Which of the following is not a character of phylum Hemichordata?

Similar Questions

Which group of animals has a body divisible into proboscis,collar,and trunk?

Which animal possesses a proboscis gland for excretion?

The larva of animals having a proboscis gland as an excretory organ is:

In which group of animals is the notochord restricted to the anterior part of the body,known as the proboscis?

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

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