(C) $Pheretima$ (earthworm) is a protostome animal. In protostomes,the blastopore,which is the first opening formed during gastrulation,develops into

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(C) $Pheretima$ (earthworm) is a protostome animal. In protostomes,the blastopore,which is the first opening formed during gastrulation,develops into the mouth. Therefore,the mouth of $Pheretima$ is derived from the blastopore.

Class 11 Biology Structural Organisation In Animals Anatomy of Earthworm

Medium

In $Pheretima$,the mouth develops from which of the following?

A
Mesoderm
B
Ectoderm
C
Blastopore
D
Endoderm

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Class 11 Questions

Class 11

Biology Questions

Chapter

Structural Organisation In Animals

Subtopic

Anatomy of Earthworm

In which segment are the male genital pores of an earthworm located?

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Which of the following pores can be found on the dorsal,ventral,and lateral surfaces of an earthworm?

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Regarding blood circulation,it may be said that in $Pheretima$,the dorsal vessel is a:

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The septal and pharyngeal nephridia open into the alimentary canal and are of the enteronephric type. This is an adaptation for:

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Answer in one word or one line.
How many spermathecae are found in earthworm?

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In $Pheretima$,the mouth develops from which of the following?

Similar Questions

In which segment are the male genital pores of an earthworm located?

Which of the following pores can be found on the dorsal,ventral,and lateral surfaces of an earthworm?

Regarding blood circulation,it may be said that in $Pheretima$,the dorsal vessel is a:

The septal and pharyngeal nephridia open into the alimentary canal and are of the enteronephric type. This is an adaptation for:

Answer in one word or one line.How many spermathecae are found in earthworm?

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Answer in one word or one line.
How many spermathecae are found in earthworm?