Question
A lab observation notes that a flattened animal has three germ layers but no body cavity between the gut and body wall. The observation points to:
Correct Answer: B
acoelomate body plan
Acoelomates are triploblastic animals without a true body cavity. Their space between digestive tract and body wall is filled with mesenchyme or parenchyma rather than a coelom. This MCQ belongs to the Body cavities topic in Animal Diversity-I and is written to test concept understanding rather than memorized wording.
Acoelomates are triploblastic animals without a true body cavity. Their space between digestive tract and body wall is filled with mesenchyme or parenchyma rather than a coelom. This MCQ belongs to the Body cavities topic in Animal Diversity-I and is written to test concept understanding rather than memorized wording.
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