Annelid WormsOBJECTIVE:

You will be able to identify the types of Annelid Worms.

Annelid’s Body symmetry

1. Bilateral symmetry

Identifying feature of Annelids

2. They are called segmented worms because they have segments, which are almost identical repeating body parts. 2. Gets Food (energy)

3. There are 3 classes:

a. earthworms

b. bristle worms

c. leeches

4. How do Annelids get energy (food)?

They get food by scavenging (earthworms and leeches), being predators (leeches and bristleworms), or parasites (leeches).

5. How do Annelids reproduce?

1. They contain both gametes (sperm and egg)

2. Sexual – exchange sperm

3. Asexual – use own sperm to fertilize eggs

6. Where do Annelids live?

Live in saltwater (bristle worms), freshwater (leeches), and land (earthworms).

7. How do Annelids move?

1. Muscle system

2. Earthworms have bristles on their body to help them move.

8. Cellular organization

More complexity – cells, tissue, organs and organ systems:

have a closed circulatory system and brain (ganglia)

Cool Facts:

• Get oxygen through skin

• Leeches are used in hospitals

* Earthworms are considered “underground farmers”. They

eat dirt and then release castings(waste) that is very fertile.

5 Question Quiz!

1. Name the 3 types of annelid worms.

2. What kind of symmetry do Annelids have?

3. Where do they live?

4. What does “Annelid mean”?

5. What are bristles?

“Annelids” – segmented worms