12th Biology important MCQ questions chapterwise for JAC and CBSE exam

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Food chain and Food Web ,definition, diagram and examples

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Ecology and interspecific interaction and its types

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Ecological pyramid-definition types and example

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adrenal gland MCQs with answers for neet-CBSE-JAC exams

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thyroid and parathyroid glands MCQs with answers for neet JAC exams

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