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Explain the role played by predators in ...

Explain the role played by predators in a community.

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They keep prey populations under control.
Predators also help in maintaining species diversity in a community by reducing the intensity of competition among competing prey species.
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XII BOARDS PREVIOUS YEAR-XII BOARDS-COMPTT
  1. a) Write the conclusin drawn by Griffith at the end of his experiment ...

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  2. Plants like potato, sugarcane do not require seeds for producing new p...

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  3. Explain the role played by predators in a community.

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  4. Name the first antibiotic discovered and by whom.

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  5. What happens when chromatids fail to segregate during cell division cy...

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  6. ABO blood groups is a good example of co-dominance. Justify.

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  7. What is the pathogenic property of baculovirus, used as a biological a...

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  8. (a) What is an "allergic reaction"? (b) Name any two drugs used to q...

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  9. Identify a, b, c,d,e and f in the following table :

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  10. List any two types of IUDs that are available for human females and st...

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  11. Mention the rule of (i) selectable marker, (ii) Ori and (iii) rop in E...

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  12. Write the aim with which animal breeding programmes are carried. Descr...

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  13. (a) Draw a diagram of sectional view of human ovary and label (i) Prim...

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  14. (a) Draw a diagram of Pistil showing pollen tube growth in angiosperm...

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  15. What was the challenge for production of insulin using rDNA techniques...

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  16. Identify A, B, C, D, E and F in the table given below :

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  17. Name the organism from which the 'cry' genes are isolated. Mention wit...

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  18. Excessive and continous use of pesticides has resulted in evolution of...

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  19. Explain with the help of two examples how certain plants have evolved ...

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  20. What type of organs eye of an Octopus and that of a human called? Give...

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