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Draw a diagram showing germination of po...

Draw a diagram showing germination of pollen on, stigma of a flower.

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Distinguish between unisexual and bisexual flowers giving one example of each. Draw a neat diagram showing fertilisation in a flower and label: a] Pollen tube b] Male germ cell c] Female germ cell, on it. OR Draw the diagram showing the germination of pollen on stigma and label the part on which pollination takes place. Answer the following questions based on diagram given aside. i] Name the part marked 'P. in the diagram. ii] How does 'P. reach part 'B'? iii] State the importance of the part 'C'. iv] What happens to the part marked 'D' after fertilisation is over? Mention the role of gamete and zygote in sexually reproducing organisms.

Germination of pollen grain on the stigma is

Draw a diagram of the longitudinal section of a flower exhibiting germination of pollen on stigma and label (i) Ovary, (ii) Male germ-cell, (ii) Female-germ cell and (iv) ovule on it.

Draw the ray diagram showing the recombination of the spectrum of white light.

CPC CAMBRIDGE PUBLICATION-HOW DO ORGANISMS REPRODUCE ?-ADDITIONAL QUESTIONS (Answer the following questions)
  1. What is allogamy?

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  2. What are the advantages of autogamy or self pollination ?

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  3. Does cell dividion play an important role in reproduction ?

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  4. What is crucial function of cell division?

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  5. Give an example cell division occurs in human body for continuity of l...

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  6. What happens if fallopian tube is blocked ?

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  7. What are the type of cell division ? Give examples of each.

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  8. i) What is fertilisation ? Distinguish between external fertilisation ...

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  9. Define the terms unisexual and bis exual giving one example of each.

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  10. Mention the mode reproduction used by a) Amoeba" " b) Planaria

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  11. Name the information source of making protiens in the cell. State two ...

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  12. a) Explain the terms: i) Implantation ii) Placenta b) What is th...

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  13. What is AIDS.? Which microbe is responsible for AIDS infection ? Stace...

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  14. How does growing embryo get nutrition from the mother's blood ?

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  15. a) List any four reasons for adopting contraceptive methods. b) If...

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  16. Draw a diagram showing germination of pollen on, stigma of a flower.

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  17. Is cell division a controlled process? If not what would happen?

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  18. Write the full form of IUCD.

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  19. What are different types of grafting techniques.

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  20. Where does the zygote get implanted in human beings ?

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