Question:

Identify the phylum which shows the following characteristics: 
1. Animals are exclusively marine, radially symmetrical, and diploblastic. 
2. Body bears eight external rows of ciliated comb plates which help in locomotion. 
3. Digestion is both extracellular and intracellular. 
4. Reproduction only by sexual modes.

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Ctenophora is known for its bioluminescence and comb-like cilia.

Updated On: Dec 26, 2024
  • Coelenterata
  • Mollusca
  • Arthropoda
  • Ctenophora
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The Correct Option is D

Solution and Explanation

Ctenophora, commonly known as comb jellies, are marine organisms that use ciliary comb plates for locomotion.
They are radially symmetrical, diploblastic, and rely on both extracellular and intracellular digestion.
Reproduction in Ctenophora is typically sexual, and they exhibit bioluminescence, making them unique among marine animals.
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