Question

Mention briefly about the circulatory system of earthworm...​

Answer 1

Answer:

Circulatory System Of Earthworm:-

• Earthworm have closed blood vascular systems.

• It consists of the heart, blood vessels, and capillaries.

• The heart pumps blood for circulating it in only one direction.

• Blood is supplied by smaller blood cells to the gut, nerve cord and the body wall.

• Blood glands are present in the 4th, 5th, and 6th segments, which produce blood cells and haemoglobin dissolved in blood plasma.

• Blood cells in earthworms are phagocytic in nature.

Answer 2

Answer:

• The earthworm has a closed circular system which comprises of blood vessels, capillaries and heart.

• In earthworms, blood is confined to the heart and blood vessels as it is a closed circulatory system

• Contraction keeps blood circulating in one direction.

• Blood glands are present on the 4th, 5th and 6th segments. They produce blood cells, haemoglobin, that are dissolved in plasma of the blood.

• Blood cells and are phagocytic.

• Specilazied breathing system is absent hence the moist body surface helps in the respiratory exchange with their blood stream