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What is the main characteristic of the phylum Porifera? (2021)

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Question: What is the main characteristic of the phylum Porifera? (2021)

Options:

  1. Presence of a true coelom
  2. Body symmetry
  3. Presence of pores
  4. Presence of a notochord

Correct Answer: Presence of pores

Exam Year: 2021

Solution: 

Porifera, or sponges, are characterized by the presence of numerous pores (ostia) in their body.

What is the main characteristic of the phylum Porifera? (2021)

Practice Questions

Q1
What is the main characteristic of the phylum Porifera? (2021)
  1. Presence of a true coelom
  2. Body symmetry
  3. Presence of pores
  4. Presence of a notochord

Questions & Step-by-Step Solutions

What is the main characteristic of the phylum Porifera? (2021)
  • Step 1: Understand that Porifera is the scientific name for sponges.
  • Step 2: Learn that sponges are simple aquatic animals.
  • Step 3: Identify that the main feature of sponges is their body structure.
  • Step 4: Recognize that sponges have many small openings called pores or ostia.
  • Step 5: Conclude that these pores allow water to flow through the sponge, which is essential for their feeding and breathing.
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