Questions: Semester Exam (Days 89 and 90) 29. Which of these is an example of the phylum Cnidaria? trout coral sponge lobster

Semester Exam (Days 89 and 90) 29. Which of these is an example of the phylum Cnidaria? trout coral sponge lobster
Transcript text: Semester Exam (Days 89 and 90) 29. Which of these is an example of the phylum Cnidaria? trout coral sponge lobster
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Solution

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The answer is the second one: coral.

Explanation for each option:

  • Trout: Incorrect. Trout are fish and belong to the phylum Chordata, not Cnidaria.

  • Coral: Correct. Corals are marine invertebrates that belong to the phylum Cnidaria. This phylum is characterized by the presence of specialized cells called cnidocytes, which are used for capturing prey.

  • Sponge: Incorrect. Sponges belong to the phylum Porifera, which is distinct from Cnidaria. They are simple, multicellular organisms that filter feed.

  • Lobster: Incorrect. Lobsters are crustaceans and belong to the phylum Arthropoda, not Cnidaria.

Summary: Coral is an example of the phylum Cnidaria.

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