Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Vivek Patel
Description: Blume Ch 13.2
| Question | Answer |
|---|---|
| What does annelids mean? | "little rings" |
| Annelids have what shaped bodies? | tube shaped |
| Annelids have a what on the outside of each body segment? | setae (bristle like structures that help move & "sense" the environment) |
| What are the main characteristics of segmented worms? | bilateral symmetry, a body cavity that holds organs, and two body openings |
| What places do segmented worms live in? | salt water, freshwater, and moist soil |
| What are the front and back ends of an Earthworm called? | Anterior- front and posterior-end |
| What are examples of segmented worms? | marine worms, earthworms, and leeches |
| What is the crop used for? | storage |
| Where are the organic matter broken down and nutrients absorbed by the blood? | the intestines |
| What are the characteristics of the circulation system in an earthworm? | closed circulatory system, 2 blood vessels- one along the top and one along the bottom, and they meet in the front, 5 aortic arches which pump blood, smaller vessels go into each body segment |
| How does their digestion processes benefit the soil? | helps provide spaces for air & water & helps fertilize the soil |
| What are their characteristics in respiration? | Oxygen and Carbon-Dioxide exchange through their skin, and it is covered with a thin watery mucus. |
| Describe an earthworm's nerve response. | Earthworms have a small brain in their front segment, nerves in each segment join to form the main nerve cord that connects to the brain, and they respond to light, temperature, & moisture. |
| Describe an earthworm's reproduction. | Earthworms are hermaphrodites, but it can’t fertilize its own eggs. It has to receive sperm from another earthworm to reproduce. |
| What do leeches feed on? | the blood of other animals |
Created by:
vivek151
Popular Science sets