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Roundworms (Grade 10)

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Roundworms reproduce                       , and the sexes are                       .
Roundworms are bilaterally symmetrical.
  1. True
  2. False
Roundworms are active hunters that feed on viruses, plants, and large invertebrates.
  1. True
  2. False
Most roundworms are free living and do not need a host to exist.
  1. True
  2. False
People can get roundworm (nematode) parasites when they drink or wash in unpurified water.
  1. True
  2. False
A roundworm has a long layer of muscles that whip its body from side to side.
  1. True
  2. False
There is not anyway to tell the difference between a male and female roundworm.
  1. True
  2. False
Which characteristics describe roundworms? Select all that apply.
  1. have a short body
  2. are a foot or more in length
  3. contain a pseudocoelom
  4. have an opening for feeding and waste elimination
Nematoda is the phylum name for the roundworm. What is the meaning of the word "Nematoda"?
  1. round-like
  2. flat-like
  3. long-like
  4. thread-like
Name a roundworm's three embryonic tissue layers.

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