Science Pictures

Earthworm dissection

1. Describe two ways in which an earthworm’s body is adapted to life in the soil. 

1) it is filled with soil 

2) the need moisture 

2. Describe one way in which earthworms are poorly adapted to life on land.

there wouldn't be enough moisture 

3. Describe the texture of the bottom of the earthworm. What causes the earthworm to have this texture? What is it used for?

it's sorta rough so it can make its way through the soil. 

4. What features distinguish annelids from roundworms?

Because the earthworms don't have a backbone

Worm Dissection

Post lab questions

1. Describe two ways in which an earthworm’s body is adapted to life in the soil. 

It is moist underground and worms need moist areas to live so they can survive, which is why they live in the soil. Also, they can hide in the soil to stay away from predators.

2. Describe one way in which earthworms are poorly adapted to life on land.

On land it is dry and they need the moist soil to survive. For example, when it rains the worm is fine because it is moist outside. But when all the water dries up and the worm is still outside the worm will die because the air is so dry.

3. Describe the texture of the bottom of the earthworm. What causes the earthworm to have this texture? What is it used for?

The texture is smooth and silky, so it is easier to move under ground. The smoothness and silkyness come from when they move around in the soil.

4. What features distinguish annelids from roundworms?

The difference between the two is that annelids are segmented, while the roundworms on the other hand do not have segments. Another difference is that annelids have more of a complex brain, while roundworms have just a ganglia and a bundle of nerve cells.