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Science (086) — AI-generated practice question

AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.

Q1. [3] deep initial-understanding
The text states that birds and mammals have a four-chambered heart, while amphibians and many reptiles have a three-chambered heart. Explain, based on the information in the text, why a four-chambered heart is more suitable for birds and mammals.
Previous-year CBSE Grade 10 board exam questions, organised by subject and chapter, each with a model answer — free to read and print.