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How does the creation of variations in a...

How does the creation of variations in a species promote survival?

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What is variation ? How is variation created in a population ? How does the creation of variation in a species promotes its survival ? (ii) Explain how, offspring and parents of organisms reproducing sexually have the same number of chromosomes.

(a) What do you understand by the term 'variation' ? (b) Name two human traits which show variation . (c) How does the creation of variation in a species ensure its survival ?

Mode of reproduction that enables creation of new variants leading to enhanced survival advantage is

How are germinal variations caused?

Assertion : The theory of survival of the fittest is widely misunderstood. Reason : Evolution does not always increase the chances of a species survival and species do not survive when mich chances happen rapidly.

MBD -HARYANA BOARD-HEREDITY AND EVOLUTION-EXAMPLE
  1. If a trait exists in 10% of population of an asexually reproducing spe...

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  2. How does the creation of variations in a species promote survival?

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  3. How do mendel's experiments show that gene may be diominant or recessi...

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  4. How do mendel's experiments proved that traits are inherited independe...

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  5. A man with blood group A marries a woman with blood group O and their ...

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  6. How is the sex of child determinded in human beings?

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  7. What are different ways in which individual with a particular trait ma...

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  8. Why are traits acquired during the life-time of an individual not inhe...

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  9. Why are the small number of surviving tigers is a couse of worry from ...

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  10. What factors could lead to the rise of new species?

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  11. Will geographical isolation be a major factor in the speciation of a s...

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  12. Will goegraphical isolation be a major fector in the speciation of and...

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  13. Give an example of characteristic being used to determine how close tw...

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  14. Can the wing of butterfly and wing of a bat be considered homologous o...

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  15. What are fossils? What do they tell us about the process of evolution

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  16. Why are human beings which look so different from each other in terms ...

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  17. In evolutionary terms can we say that which among bacteria, spider,fis...

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  18. A Mendelian experiment consisted of breeding tall pea plants bearing v...

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  19. An example of homologous organs is

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  20. A study found that children with light-coloured eyes are likely to hav...

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