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Kendahl R.
Blume Ch. 13.2
| Question | Answer |
|---|---|
| What is the meaning of Annelids? | "Little rings" |
| What are some attributes of Annelids? | They have tube shaped bodies divided into many segments and have setae. |
| What is a worm's symmetry? | Bilateral |
| How many openings does a worm have? What are they. | 2; the mouth and the anus |
| Where does the soil go after it enters the worm's mouth? | The crop "storage sack" |
| What grinds up the soil? | The gizzard |
| Where does it pass to next? | The intestines |
| Finally, the waste exits through the _____. | anus |
| T or F. This process is horrible for the worm. | False |
| The waste that piles up are called? | Castings |
| How do castings help attribute to the soil? | They fertilize the soil. |
| What is a worms circulatory system? | A closed circulatory system |
| How many blood vessels does a worm have? Where are they located? | 2; along the top and along the bottom |
| What do the aortic arches do? How many of them are there? | They pump blood; there are 5 of them. |
| ______ vessels go into each body segment. | Smaller |
| T or F. Worms don't have gills or lungs. | True |
| Where is O2 and CO2 exchanged? | Through the worms skin. |
| What is the texture of a worms skin? | It is covered with a watery mucus. |
| If you touch the worms with dry hands, you could? | Suffocate them |
| Where is the worms brain? | In the front segment. |
| Nerves in each segment join to form the main nerve cord that connects to the _____. | Brain |
| What do worms respond to? | Light, temperature, and moisture. |
| Earthworms are _______. | Hermaphrodites |
| Why are worms like sponges in a way? | They can lay eggs and produce sperm, but they can't fertilize their own eggs. |
| What does it have to do to fertilize? | It must receive sperm from another worm. |
| What is the name of marine worms? | Polychaetes |
| What is the estimation of their species number? | About 8000+ |
| What are some things that they do? | They float, burrow, build structures, or walk along the ocean floor. |
| Fun fact about marine worms. | Some can produce their own light. |
| How deep can some marine worms live? | 540m |
| What is one thing that makes marine worms like earthworms? | They have body segments. |
| Their name "Polychaetes" means... | Many bristles |
| What does the "Christmas Tree" do with it's tentacles. | It exchanges O2 and CO2 as well as gather food. |
| Free-Swimming Polychaetes have... | a head with eyes, a tail, and parapodia |
| What are parapodia? | These are paired, fleshy outgrowths on each segment that help it move and get food. |
Created by:
kendahl
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