Write the approximate average life span of following organisms :

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 Multiple Choice QuestionsShort Answer Type

51. What is life span ?
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52. Write the approximate average life span of following organisms :

May fly, wheat, monkey, dog, cat, horse, elephant, eagle, man, parrot, tortoise, Banyan tree and sequoia tree. Name the oldest tree.


May fly — 1 day ;               Wheat — 5 months ;

Monkey — 26 years ;          Dog — 13-15 years ; 

Cat — 12-15 years ;            Horse —25-30 years :

Elephant — 65 years ;         Eagle — 20 years ;

Man — 85 years :                Parrot — 80-100 years;

Tortoise — 150 years ;   Banyan tree — 200 years ;

Sequoia tree — 3000 - 4000 years.

Oldest living tree is the Bristle Cone Pine in the White Mountains (California), with an age of 5,065 years.

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53. Distinguish between asexual and sexual reproduction. Why is vegetative reproduction also considered as a type of asexual reproduction ?
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54.  List the different ways of asexual reproduction.
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 Multiple Choice QuestionsLong Answer Type

55.  Discuss the advantages and disadvantages of asexual reproduction.
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56. What is vegetative propagation ? Give two suitable examples.
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57. Discuss the advantages and disadvantages of sexual reproduction.
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58.  Describe the fission in yeast.
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59. Show the different kinds of asexual reproductive structures.
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 Multiple Choice QuestionsLong Answer Type

60.

Describe fission in animals as mode of reproduction.

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