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51.

List any three important characteristics of a population and explain.

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52. Explain competitive release.

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53. List the various attributes of a population.

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54.

Explain J-Shaped pattern of population growth.

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55. Compare J-shaped pattern with S-shaped pattern of population growth.

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56.

Explain population density.

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57. Differentiate natality rate and Mortality rate.

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58. Differentiate natality rate and death rate.

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59.

Give an example for:
(a) An endothermic animal
(b) An ectothermic animal
(c) An organism of benthic zone

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60. What is predator and prey ? Give example.

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