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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 |