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Type: Multiple-Choice
Category: Food Chains and Webs
Level: Grade 7
Score: 1
Tags: echinoderm, chordate
Author: RenaKilgore
Last Modified: 6 years ago

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Food Chains and Webs Question

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Grade 7 Food Chains and Webs

If the starfish are removed from an ocean shoreline ecosystem, what happens to the mussel (clam) populations?
  1. The clams become extinct.
  2. The area becomes more diverse with more kinds of clams.
  3. One species of clam crowds out all the others.
  4. The clams begin to prey on each other.