A learner makes a note: a comparison between flatworms and roundworms emphasizes one-way movement of food. The missing scientific idea is:
Correct Answer: A
complete gut improves feeding efficiency
A complete digestive tract has separate mouth and anus, allowing one-way flow and specialization of regions. This improves feeding efficiency compared with a single-opening gastrovascular cavity or incomplete gut. This MCQ belongs to the Comparative anatomy topic in Animal Diversity-I and is written to test concept understanding rather than memorized wording.
A complete digestive tract has separate mouth and anus, allowing one-way flow and specialization of regions. This improves feeding efficiency compared with a single-opening gastrovascular cavity or incomplete gut. This MCQ belongs to the Comparative anatomy topic in Animal Diversity-I and is written to test concept understanding rather than memorized wording.
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