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Explain any three advantages the seeds o...

Explain any three advantages the seeds offer to angiosperms.

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**Step-by-Step Solution:** 1. **Nourishment and Parental Care**: Seeds provide essential nourishment to the developing embryo. The endosperm, which is a part of the seed, serves as a food reserve that supports the embryo's growth until it can establish itself and begin photosynthesis. This parental care ensures that the embryo has the necessary resources to develop into a healthy plant. 2. **Protection from Harsh Conditions**: Seeds are designed to withstand unfavorable environmental conditions. The seed coat protects the embryo from physical damage, desiccation, and extreme temperatures. This protective feature allows seeds to remain dormant until conditions are favorable for germination, thus increasing the chances of survival for the species. 3. **Genetic Variation**: Seeds facilitate genetic diversity through sexual reproduction. When male and female gametes fuse during fertilization, they create a zygote with a unique genetic makeup. This genetic variation is crucial for the adaptation and evolution of angiosperms, allowing them to respond to changing environments and resist diseases. ...
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XII BOARD PREVIOUS YEAR PAPER ENGLISH-XII BOARDS-Section C
  1. (a) Draw an L.S. of pistil showing pollen tube entering into the embry...

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  2. Name the kind of diseases/disorders and any two symptoms that are like...

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  3. Name the technique and the property of plant cells that can help to gr...

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  4. Give reasons why : (a) DNA cannot pass into a host cell through the...

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  5. State the medicinal value and the bioactive molecules produced Penicil...

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  6. Explain the steps in the formation of an ovum from an oogonium in huma...

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  7. a) Explain "birth rate" in a population by taking a suitable example. ...

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  8. a) Explain DNA polymorphism as the basis of genetic mapping of human g...

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  9. a) Explain "death rate" in a population by taking a suitable example. ...

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  10. Explain any three advantages the seeds offer to angiosperms.

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  11. Name and explain the role of inner and middle walls of the human uteru...

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  12. A color-blind child is born to a normal couple. Work out a cross to sh...

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  13. Mendel published his work on inheritance of characters in 1865, but is...

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  14. Women are often blamed for producing female children. Consequently, th...

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  15. a) Name the tropical sugar cane variety grown in South India. How has ...

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  16. Why are beehives kept in crop field during flowering period? Name any ...

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  17. Study the graph given below and answer the questions that follow: ...

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  18. i) What is primary productivity? Why does it vary in different types o...

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  19. A cross between a normal couple resulted in a son who was haemophilic ...

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