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Mention the problems created by the plan...

Mention the problems created by the plant water hyacinth.

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It drains oxygen from the water, which leads to death of fishes. Since it can propagate vegetatively at a phenomenal rate and spread all over the water body in a short period of time it is very difficult to get rid off them.
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OSWAAL PUBLICATION-REPRODUCTION IN ORGANISMS-TOPIC-1 LIFE SPAN AND ASEXUAL REPRODUCTION ( SHORT ANSWER TYPE QUESTIONS I)
  1. Why offspring derived by asexual reproduction are called clones?

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  2. Is there a relationship between the size of an organism and its life s...

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  3. Between an annual and a perennial plant, which one has a shorter juve...

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  4. Rearrange the following events of sexual reproduction in the sequence ...

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  5. The probability of fuit set in a self pollinated bisexual flower of a ...

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  6. In haploid organisms that undergo sexual reproduction, name the stage ...

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  7. What is life span ?

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  8. Mention the problems created by the plant water hyacinth.

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  9. Define clone.

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  10. Justify: There is no relationship between the size and lifespan of an ...

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  11. In Yeast and Amoeba the parent cell divides to gives rise to two new i...

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  12. What is asexual reproduction?

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  13. Why vegetative propagation is called asexual reproduction?

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  14. What is vegetative propagation? Give two suitable examples.

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  15. Why do internodal segments of sugarcane fail to propagate vegatatively...

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  16. Mention any two characteristic features of asexual reproduction.

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  17. What is the basic difference between binary fission and budding?

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  18. Define encystation.

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  19. What is sporulation? Give an example.

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  20. What is meanty by fragmentation? Give an example.

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