Which organ is common to earthworm cockroach and Bird?

Nephridia are the excretory organs in annelids whereas this function is performed by malpighian tubules in cockroaches. Double ventral nerve cord is present in the nervous system of both earthworm (annelida) and cockroach (arthropoda).

What is common in cockroach and earthworm?

Cockroach and earthworm are non-chordates and have a solid ventral nerve cord. It is present at the anterior side of the body. It helps in the support and attachment of muscles. So, the correct answer is option B.

Which system is almost similar in earthworm and cockroach?

So, the correct answer is ‘Ventral nerve cord

What is excretory organ of cockroach?

Malpighian tubules are the excretory system of cockroaches.

Which of the following is common to both cockroach and frog?

The common feature of frog and cockroach is indirect development.

Does cockroach show Metamerism?

It shows true segmentation i.e., external segmentation corresponds with internal segmentation. Cockroach also shows the metameric segmentation. Its anterior few segments are specialized to form head. Such metamerism is called heteronomous metamerism.

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What is the difference between earthworm and cockroach?

(I) Earthworms digestive track is straight and simple. cockroach is curved and more developed. (ii) Earthworm absorb oxygen passively through the moist skin while the cockroach takes gas diffusion place through their spircle . … Cockroaches use legs and wings to move……..

Do cockroaches feel pain?

They don’t feel ‘pain,’ but may feel irritation and probably can sense if they are damaged. Even so, they certainly cannot suffer because they don’t have emotions.

What is the function of ganglia in cockroach?

The sub-oesophageal ganglion is the principal motor centre and controls the movements of muscles, mouth parts, wings and legs. From the sub-oesophageal ganglion arises a double nerve cord which travels through the thorax and abdomen below the alimentary canal on the ventral side up to the posterior end of the body.

Does a cockroach have a nervous system?

The predominant characteristics of the cockroach central nervous system (CNS) are its segmented nature and decentralization of control processes4,5. The brain, thoracic, and abdominal ganglia are joined together by paired interganglionic connectives to form the ventral nerve cord (VNC).

What are the two excretory organ of cockroach?

Excretory organs of Cockroach and other insects are (1) Nephridia (2) Flame cells (3) Malpighian tubules (4) Gizzard. Malpighian tubules constitute the excretory organs of cockroach and other insects.

What is not true for the main excretory organ of cockroach?

Statement A says that in cockroaches and prawns the excretory organ is the same and that is Malpighian tubules. Excretion refers to waste removal from the body. … It excretes using green glands that help in the removal of nitrogenous waste from its body. Thus, this statement is incorrect.

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