Blume Ch 12.3 Reinforcement
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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| Worms are divided into what 2 types? | Roundworms and Flatworms
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| All worms are _______ with with 3 tissue layers. | Invertebrates
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| All worms are Invertebrates with with 3 tissue layers. In addition, all worms have _______ symmetry. | Bilateral
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| _____worms were the first group of animal to evolve bilateral symmetry. | Flat
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| _________ and _________ are types of parasite flatworms. | Tapeworms and Flukes
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| Parasites depend on a host to meet their needs. Planarians however, are ________ flatworms. | Free-living
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| Roundworms were the first group of animals to evolve a digestive system with a ______ and an _____. | Mouth and an Anus
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| Some roundworms, like ___________ that attack dogs, are parasites. Most, however, are free-living. | Heartworms
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| Roundworms comprise a group of worms known as _______. | Nematodes
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| How does a tapeworm eat? | Tapeworms do not have a mouth or a digestive system. Instead, the tapeworm absorbs food that is digested by the host from its host’s intestine.
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| Describe the life cycle of a fluke. | The eggs are fertilized in the female and she lays the fertilized eggs in the host. The eggs leave in the host's waists and often infect snails after being deposited in water, other hosts like humans, can be infected while swimming.
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| What is the most widespread human disease caused by flukes? | Schistosomiasis
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| List 3 ways roundworm are helpful to humans. | 1. They enrich the soil by breaking down dead organisms
2. By creating burrows through which oxygen circulates
3. Other roundworms kill insect pests like termites, fleas, ants, beetles, and many more
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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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