CBSE Biology Self-Practice Test Paper : Set II
1. Why does food not enter trachea when we swallow food?
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2. What type of asexual reproduction is exhibited by Plasmodium? What is the main feature of this type of reproduction?
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3. There are about 30,000 to 40,000 characters observed in human beings and only 23 pairs of chromosomes. How are genes distributed and located on a chromo¬somes?
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4. What type of cells are red blood corpuscles? Describe them. Explain the function they perform.
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5. What do you understand by the terms: (i) Haploid, and (ii) Diploid?
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6. Explain any two methods of disposal of solid waste.
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7. What do you understand by ‘conservation of natural resources’ and ‘preservation of natural resources’? Mention the law meant for ‘protection of forests’ and the year in which it was implemented.
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8. How does exchange of gases occur in roots, stems and leaves of a plant? Explain.
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9. What is fertilisation? How many types of fertilisations occur in animals? Name and explain them.
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10. Mention the names and the functions of the hormones released by the pituitary gland.
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