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Reproduction in Organisms

Short Answer Type

71. Explain the significance of fertilization.

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Long Answer Type

72. What do you understand by vegetative methods of reproduction ? Explain with examples

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73. Describe the importance of vegetative propagation.

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Short Answer Type

74.
Which is a better mode of reproduction: sexual or asexual? Why?

Sexual reproduction is a better mode of reproduction as it produces variations which are necessary for evolution and there are better chances for survival. Whereas in asexual mode of reproduction no variations are produced since only one parent is involved.

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75.

Explain why meiosis and gametogenesis are always interlinked?

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76.

Describe the post-fertilisation changes in a flower.

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77.

Examine a few flowers of any cucurbit plant and try to identify the staminate and pistillate flowers. Do you know any other plant that bears unisexual flowers?

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