Class 9 · Biology · Hard level · 8 questions
Biological Molecules: Application
The four molecules life is built from, and how to test for each one. In Class 9 Biology the topic covers what living things are made of, the four families, the food tests and identifying an unknown food. This quiz is the hardest level, with Class 9 exam-style questions that mix the ideas together. 8 questions (multiple choice), marked the moment you finish, with the reason for every answer.
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