1. Why is diffusion insufficient to meet the oxygen requirements of multicellular organisms like humans? Humans and other multicellular organisms have large bodies and require a lot of oxygen to reach ...
CBSE Class 10 Science Board Exam 2026 is of 80 marks, divided into Biology (30), Chemistry (25), and Physics (25). Life Processes, Metals & Non-metals, Electricity, and Light carry the highest ...
CBSE Class 10 Biology Life Processes is a high-weightage chapter for students appearing in the 2026 board examinations. This section is meant for Class 10 students and parents, offering an ...
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