Biology · Animal Kingdom Classification
Which of the following is a key distinguishing structural feature characteristic of Acoelomate organisms?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Solid body structure without a fluid-filled cavity around the internal organs✓
- 2Presence of a body cavity incompletely lined with mesoderm
- 3Absence of a differentiated brain or cephalic region
- 4Complete absence of the mesodermal germ layer
Correct answer
Solid body structure without a fluid-filled cavity around the internal organs
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