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Blume Ch 13.2

Annelids have what shaped bodies? tube shaped
Annelids have a what on the outside of each body segment setae
Segmented worms have what type of symmetry? bilateral
What three places do segmented worms live in? salt water, freshwater, moist soil
What is the front and back end of an Earthworm? Anterior and posterior
What is the crop in an earthworm used for? storage
Where in an earthworm are the nutrients absorbed and organic matter broken down? intestines
What from an earthworm helps fertilize the soil? castings
Is an earthworm a closed or open circulatory system? closed
An earthworm has two of what that go along the bottom and top of itself? blood vessels
The worm has five what that pumps blood? aortic arches
How does an earthworm breath? It has an oxygen carbon-dioxide exchange through its skin
Why should you never touch an earthworm with dry hands? you could take off their mucus layer and suffocate them
Where does the main nerve cord connect to? the brain
Which three things do earthworms respond to? light, temperature, and moisture
Does an earthworm produce sperm, egg, or both? both
How many types of species of marine worms are there? more than 8000
What do leeches feed on? the blood of other animals
Created by: nbrown1