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Which is a better mode of reproduction s...

Which is a better mode of reproduction sexual or asexual? Why?

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Sexual reproduction is a better mode of reproduction. It allows the formation of new variants by the combination of the DNA from two different individuals, typically one of each sex. It involves the fusion of the male and the female gamete to produce variants, which are not identical to their parents and to themselves. This variation allows the individual to adapt to constantly changing and challenging environments. Also, it leads to the evolution of better suited organisms which ensures greater survival of a species. On the contrary, asexual reproduction allows very little or no variation at all. As a result, the individuals produced are exact copies of their parents and themselves.
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NCERT BANGLISH-REPRODUCTION IN ORGANISMS-Questions
  1. Why is reproduction essential for organisms?

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  2. Which is a better mode of reproduction sexual or asexual? Why?

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  3. Why is the offspring formed by asexual reproduction referred to as clo...

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  4. Offspring formed due to sexual reproduction have better chances of sur...

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  5. How does the progeny formed from asexual reproduction differ from thos...

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  6. Distinguish between asexual and sexual reproduction. Why is vegetative...

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  7. What is vegetative propagation? Give two suitable examples

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  8. Define (a) Juvenile phase, (b) Reproductive phase, (c) Senescen...

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  9. Higher organisms have resorted to sexual reproduction in spite of its ...

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  10. Explain why meiosis and gametogenesis are always interlinked?

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  11. Identify each part in a flowering plant and write whether it is haploi...

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  12. Define external fertilization. Mention its disadvantages.

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  13. Differentiate between a zoospore and a zygote.

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  14. Differentiate between gametogenesis from embryogenesis.

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  15. Describe the post-fertilization changes in a flower.

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  16. What is a bisexual flower? Collect five bisexual flowers from your nei...

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  17. Examine a few flowers of any cucurbit plant and try to identify the st...

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  18. Why are offspring of oviparous animals at a greater risk as compared t...

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