Question

which animals having no specialised organs for respiration?how they respire?​

Answer 1

Answer:

Earthworms

Explanation:

Frogs have lungs, cockroaches have trachea, while fishes have gills for respiration. Earthworms don't have special organs for respiration, instead, they breathe through their skin.

Answer 2

Earthworms have no specialized organs for respiration. They respire through their skin.

Explanation:

• Respiration is the intake and exhaling of air from the respiratory organ. Usually, all the creatures have a defined organ to do so but some primitive can do this jointly either by skin or some other organ.

• Earthworms do not have any particular organ to respire. They respire through their moist body into the air and vice versa into the bloodstream.

• Air dissolves on the mucus of their skin, so they must stay moist to breathe. If worms dry out, they suffocate.

• As fresh air is taken in through the skin, oxygen is drawn into the worm's circulatory system, and the worm's hearts pump the oxygenated blood to the head area.

• Carbon dioxide dissolves out of the blood back to the skin.