Comparative organizationHardQuestion 10339
Question
Which statement is correct?
- ASponges are cellular, cnidarians tissue level, and platyhelminthes organ levelCorrect
- BCnidarians are organ-system level
- CRoundworms are diploblastic
- DCoelomates lack mesoderm
Correct answer
Sponges are cellular, cnidarians tissue level, and platyhelminthes organ level
Explanation
This follows the standard progression of body organization.