MCQ
The only incorrectly matched pair is
  • A
    Porifera- Cellular level
  • B
    Cnidaria - Tissue level
  • Annelida - Organ level ordy
  • D
    Mollusca - Organ system level

Answer

Correct option: C.
Annelida - Organ level ordy
c
 Porifera - Cellular level

Cnidaria - Tissue level

Annelida - Organ-system level

Mollusca - Organ-system level

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