What are classes of annelids
2. bristle worms
Where do annelids live?
In salt water, fresh water, and on land
What are some general characteristics of annelids?
1. Segmented body (identical repeating body parts)
2. Have a coelom
3. Closed circulatory system
4. Central nervous system
Why are earthworms important to the earth?
They eat soil and then break it down and poop it out that provides nutrients for plants.
They also improve soil by burrowing tunnels which allows air and water to reach deep into the soil (that's why gardnerers love worms!)
What is a closed circulatory system?
The heart circulated blood through network of blood vessels that form a closed loop
What is a coelom?
It's part of an animal's gut (digestive tract) ... it's a special space that surrounds the gut