Question

write the excretion organs present in the following animals starfish,cockroach, earthworm, roundworm​

Answer 1

Answer:

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Explanation:

In starfish, they have no distinct excretory organs; waste ammonia is removed by diffusion through the tube feet and papulae.

Cockroaches have Malpighian tubules. Malpighian tubules are slender tubes normally found in the posterior regions of arthropod alimentary canals.

Earthworms (annelids) have slightly more evolved excretory structures called nephridia,

Roundworms - No particular excretory organ is found. Roundworms diffuse metabolic waste through there body wall.But they have Protonephridia

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