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Organisms and Populations

Long Answer Type

51.

List any three important characteristics of a population and explain.

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Short Answer Type

52. Explain competitive release.

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53. List the various attributes of a population.

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Long Answer Type

54.

Explain J-Shaped pattern of population growth.

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Short Answer Type

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.

Predation. It is an interspecific interaction, where one animal (called predator) kills and consumes the other weaker animal (called prey).

Predator are those organism that live by killing and consuming other organism as food.
Prey is the organism which is killed and consumed by the predator.

Examples,
(i) A tiger(predator) killing and eating a deer(prey).

(ii) A snake (predator) eating a frog (prey).

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