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Reproduction: How Life Continues

Science · CBSE Class 9 · English Medium · 35 questions and answers

Sample questions

Q: Why is reproduction important for a species even though a single organism can survive without it?
A: Reproduction produces new individuals of the same kind, so it ensures the continuation of the species from one generation to the next and prevents its extinction.
Q: What is asexual reproduction?
A: A mode of reproduction in which a single parent produces offspring that are almost exact copies of itself, without the fusion of gametes.
Q: What are clones?
A: Offspring produced by asexual reproduction that are genetically identical to the single parent and to one another.
Q: Name the process of asexual reproduction seen in yeast and Hydra.
A: Budding, in which a small outgrowth (bud) forms on the parent, grows, and then detaches to live as a new individual.
Q: How does the bread mould Rhizopus reproduce asexually?
A: By spore formation — tiny spores made in sporangia are released, and each can germinate into a new mould when it lands in favourable conditions.

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