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CFore
Blume ch 12.3
| Question | Answer |
|---|---|
| What are invertebrates with soft bodies, bilateral symmetry, and three tissue layers organized into organs and organ systems | Worms |
| Flat worms are usually parasites, but a few are___________. | Free-living organisms |
| What are free-living flatworms that feed on small organisms or dead bodies of larger organisms. | Planarians |
| Most planarians live under rocks, on_____ material, or in_________water. | Plant, Water |
| How do planarians reproduce? | Sexually or Asexually; they lay eggs |
| What are parasites with a complex life cycle that requires more than 1 host. | Flukes |
| Flukes produce_________. | Sexually |
| What disease do Flukes cause? | Schistsomiasis |
| What are parasites that liven in the intestines of a host animal? | Tapeworms |
| How do tapeworms get their food? | They absorb the digested food from the host. |
| How do tapeworms reproduce? | They produce body segments that contain sperm and eggs. |
| How do tapeworms get another host? | The can pass out of the host's body and into another host |
| What were the first animals to have bilateral symmetry? | Flatworms |
| _______ and nerves in the head, and a ________ tissue layer that develops into organs and systems. | Senses, Third |
| What are other names for Roundworms? | Nematodes |
| Did roundworms appear early in evolution? | yes |
| Are roundworms parasites? | yes |
| Do roundworms kill pests? | yes |
| Are roundworms essential in good soil? | yes |
Created by:
Cole_Fore
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