(B) $Pheretima$ (earthworm) is a hermaphrodite (monoecious) organism,meaning both male and female reproductive organs are present in the same individu

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(B) $Pheretima$ (earthworm) is a hermaphrodite (monoecious) organism,meaning both male and female reproductive organs are present in the same individual.However,they exhibit cross-fertilization due to a condition called protandry,where the testes mature earlier than the ovaries.

Class 11 Biology Structural Organisation in Animals Anatomy of Earthworm

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$Pheretima$ is:

A
Sterile
B
Hermaphrodite
C
Radially symmetrical
D
Dioecious

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Class 11 Questions

Class 11

Biology Questions

Chapter

Structural Organisation in Animals

Subtopic

Anatomy of Earthworm

Chromophil cells present on the pharynx of an Earthworm take part in the secretion of:

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The prostomium is $...............$

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$P$ (Assertion): Earthworms have a closed type of circulatory system.
$Q$ (Reason): Earthworms have hemoglobin dissolved in their blood plasma.

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The flow of blood in the dorsal blood vessel of an earthworm is:

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The clitellum of $Pheretima$ $posthuma$ is primarily associated with which of the following?

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$Pheretima$ is:

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Chromophil cells present on the pharynx of an Earthworm take part in the secretion of:

The prostomium is $...............$

$P$ (Assertion): Earthworms have a closed type of circulatory system.$Q$ (Reason): Earthworms have hemoglobin dissolved in their blood plasma.

The flow of blood in the dorsal blood vessel of an earthworm is:

The clitellum of $Pheretima$ $posthuma$ is primarily associated with which of the following?

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$P$ (Assertion): Earthworms have a closed type of circulatory system.
$Q$ (Reason): Earthworms have hemoglobin dissolved in their blood plasma.