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Szollo:) ❀
Blume Ch 12.3 Reinforcement
| Question | Answer |
|---|---|
| Worms are divided into two types, ____________ and _____________. | flatworms and roundworms |
| All worms are _____________ with three tissue layers. In addition, all worms have ____________ symmetry. | Invertebrates and Bilateral |
| _____________ and _____________ are types of parasite flatworms. | tapeworms and flukes |
| Parasites depend on a host organism to meed their needs. Planaraians however, are ______________________ flatworms. | free-living |
| Roundworms were the first group of animals to evolve a digestive system with a ______________ and an ________. | Mouth and Anus |
| Some like the ___________________ that attack dogs, are parasites. Most, however, are free-living. | heart worms |
| Roundworms comprise a group of worms known as _________________. | nematodes |
| How does a tapeworm eat? | Tapeworms attach themselves in a host's intestine and absorbe food the host has digested |
| Describe the life cycle of a fluke. | The eggs are fertilized in the female, and she lays the fertilized eggs in a host. The egga leave in the host's waste and often infect snails anfter losing deposited in water. other hosts like humans, cn be infected while swimming. |
| What is the most widespread human disease caused by flukes? | schistosomiasis |
| List three ways roundworms are helpful to humans. | Roundworms help fight insects, may be used to kill ticks that cause Lyme disease, and help provide healthy soil. |
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