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  • Porifera (Class XI)
  • What are grey cells of sponges equivalent to?
Multiple choice

What are grey cells of sponges equivalent to?

  1. Endocrine system

  2. Reproductive system

  3. Immune system

  4. Nervous system

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The grey cells of sponges are equivalent to immune system.  

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