AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
Cellulose in plant food is harder to digest, so herbivores need a longer small intestine to allow sufficient time and surface area for complete digestion and absorption.
Source: Chapter 5, Section 5.2.2 Heterotrophic Nutrition
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The question tests application of the concept that diet determines digestive system design. The key points examiners expect are: (1) herbivores eat plant material containing cellulose, which is tough to digest, and (2) a longer intestine provides more time/surface area for digestion. The source passage hints that "what can be taken in and broken down depends on the body design and functioning" and that the digestive system differs based on food type. Keep the answer to one crisp line for 1 mark.