Earthworm is an invertebrate hence it has its nerve chord at the "front" of its body, that is at the ventral surface.To avoid causing damage to the nerve chord,earthworm(invertebrate)is dissected dorsal side up.
The dorsal side of an earthworm is darker than the ventral side because of the dorsal blood vessal that runs along the top of the digestive track and just under the skin. There is a ventral blood vessal, but it doesn't lie against the skin, but instead in between the ventral nerve cord and the digestive track.
Dorsal is the back. Just think of a dolphin's dorsal fin and you'll never get ventral and dorsal mixed up again.
dorsal recumbent
what makes up the environment of an earthworm
what makes up the environment of an earthworm
The ventral nerve cord makes up nearly all of the nervous system in the earthworm. It goes from the anterior (front) end to the posterior (back) end. It's function is simple; it's the nerves in the worm! If dissected, the nerve cord looks like a thin white line on the ventral (belly) side on the inside of the skin.
Dissected means cut up while occlusion is a closure or obstruction.
she has make-up on
The ventral side of a person (or animal's) body is where the front of their chest is, so a ventral position is lying with your chest up. The back of a person is their 'dorsal' side.
ventral is from the base view. so imagine a dog standing up. Dorsal would be looking down onto its back and ventral would be lokking up towards its tummy from the ground.
The nerve cord of an earthworm is ventral because the nerve cord runs down the ventral, or belly, plane of the organism compared to a dorsal nerve cord, which would run down the dorsal, or back, plane of the organism.
I don't know. Try to look up a picture on google of a worm. And then just see if it has the same on each side. Remember, symmetry is when it is exactly the same on each side, like a butterfly.