I'm not absolutely sure, but I would say yes, so they can breathe and live like humans.
the respiratory pigment in humans is hemoglobin
No,many insects do not use blood to carry oxygen.Annelids like earthworms have heamoglobin.
Earthworms have blood and it is enclosed in a network of tubes much like the blood system of mammals. It is red because it contains the oxygen carrying pigment hemoglobin. Unlike mammals, where the hemoglobin is inside red blood cells, earthworm hemoglobin is just mixed in the liquid of the blood, commonly called hemolymph. Earthworms pump their blood around the body with the help of 5 specialized blood vessels that contract and expand. They are the worm's hearts.
earthworms travel faster
The bacteria in earthworms is called Eisenia Fetida it's in most earthworms
durkheim and earthworms
what continent does earthworms livfe on
Earthworms do not have legs.
no they love earthworms
Earthworms live in glaciers.
Earthworms do not have a skeleton at all.
hemoglobin