Blume Ch 12.3
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What are invertebrates with soft bodies, bilateral symmetry, and three tissue layers organized into organs and organ systems? | Worm
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| What are usually parasites, but few are free-living organisms. | Flatworms
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| What are free-living flatworms that feed on small organisms or dead bodies of larger organisms? | Planarians
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| Where do most planarians live? | Under rocks, on plant material, or in freshwater water
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| How can planarians reproduce? | Sexually or Asexually
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| What are parasites with complex life cycle that requires more than one host? | Flukes
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| How do flukes reproduce? | sexually
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| Flukes cause _________ a potentially fatal blood disease, in humans. | Schistosomiasis
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| What are parasites that live in the intestines of a host animal? | Tapeworms
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| Tapeworms absorb food digested by ______. | Host
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| Tapeworms produce what that contains sperm and eggs? | Segments
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| What were probably the first animals to have bilateral symmetry, senses and nerves in the head region, and a third tissue layer that develops into organs and systems? | Flatworms
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| What are roundworms also called? | Nematodes
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| Many roundworms are plant and animal parasites; roundworms can cause _________ in humans. | trichinosis
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| Worms are divided into what two types? | flatworms and roundworms
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| T or F: All worms are invertebrates with four tissue layers. | False
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| What are types of parasite flatworms? | Tapeworms and flukes
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| Planarians are _______ flatworms. | free-living
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| How are some roundworms beneficial? | They kill pests
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| Roundworms are essential in developing what? | Healthy Soil
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| The fertilized eggs pass out of the host's body and can ______ another host. | enter
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| Roundworms appear _____ in animal evolution, but scientists are not sure how they evolved. | early
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| Roundworms were the first group of animals to evolve a digestive system with a _______ and an ______. | mouth and anus
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| ________ attack dogs, are parasites. | Heartworms
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| How does a tapeworm eat? | Tapeworms attach themselves in a host's intestine & asrobe food the host has digested.
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| What is the most widespread human disease caused by flukes? | Schistosomiasis
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| List three ways roundworms are helpful to humans. | 1. They help fight insects
2. May be used to kill ticks that cause Lyme disease
3. Help provide healthy soil
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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