Biology Forums - Study Force

For coral reefs to form in tropical waters, it is necessary for the coral animals to live in symbiosis with:a.
   bacteria.
  b. parrot fish.
  c. zooxanthellae.
  d. sea urchins.
  e. kelp.

Question 2

Adaptations found in inhabitants of the rocky intertidal zone include:a.
   soft bodies.
  b. an anchor or some other means of attachment.
  c. strong swimming abilities.
  d. active burrowing.
  e. delicate outer coverings or bodies.

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