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Caroline Harper
Blume ch.13.2
| Question | Answer |
|---|---|
| What shape are annelids? | tube shaped bodies that are divided into many segments |
| What kind of symmetry do Segmented worms have? | bilateral |
| What holds the two organs? | Body cavity |
| What are the two openings? | mouth & anus |
| Where can segmented worms live? | freshwater, salt water, & moist soil |
| Where does it take the soil in? | it's mouth |
| What is the crop? | sac used for storage |
| What is a gizzard? | a muscular structure which grinds the soil and the bits of organic mater. |
| Where is the organic matter broken down & nutrients are absorbed by the blood? | Intestines |
| Where does the waste leave the worm? | Anus |
| What helps fertilize the soil? | casting |
| What does taking in of soil to get food helps provide? | spaces for air and water to flow through the soil and mix the soil |
| How many blood vessels do the worms have? | 2 |
| Where are the two blood vessels located? | one along the top and one along the bottom |
| What pumps the blood? | 5 heart-like “aortic arches” |
| Where does oxygen and carbon dioxide exchange through? | Their skin. |
| What is the skin covered with? | Thin, watery mucus |
| What do these worms not have? | gills or lungs |
| WHere is their brain located? | In the front segment |
| What do the nerves respond to? | light, temperature, and moisture |
| What are earthworms? | hermaphrodites |
| What can it not do? | fertilize its own eggs |
| What can it make? | both sperms and eggs |
| What must the earthworm do to reproduce? | receive sperm from another earthworm |
| Marine worms are what? | Polychaetes |
| How do marine worms move? | float, burrow, build structures, or walk along the ocean floor |
| What can some marine worms do? | Produce their own light |
| What do marine worms have? | Segments |
| What does polychaete mean? | "many bristles" |
| What do free-swimming polychaetes have? | head with eyes, a tail and parapodia |
| What are leeches? | segmented worms |
| What do leeches feed on? | Blood of other animals |
| What do leeches have at the end of their body? | A sucker |
Created by:
andreaharper
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