3) What are the characteristics of flatworms? Give examples.
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Answer:
Characteristics. Flatworms are flattened and have bilateral symmetry. They are triploblastic (have 3 embryonic tissue layers: ectoderm, mesoderm, and endoderm) and therefore have organ-level of organization. There is no body cavity, so they are acoelomate.
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Explanation:
Flatworms have no true body cavity, but they do have bilateral symmetry. ...
Flatworms have an incomplete digestive system. ...
Flatworms do not have a respiratory system. ...
There are no blood vessels in the flatworms.
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