Haemoglobin and blood cells are formed in Earthworm from

Carbon monoxide combines with the haemoglobin in the red blood cells of our body to form carboxyhaemoglobin.

Blood of earthworm is

Blood cell of earthworm lack haemoglobin. But blood of earthworm is red in colour. How do you account for it?

The colour of blood in earthworm is

Flow of blood in dorsal blood vessel of Earthworm is

Flow of blood in dorsal blood vessel of Earthworm is

Flow of blood in dorsal blood vessel of Earthworm is

Blood vascular system of earthworm is: