Organisms and Populations MCQ Questions & Answers in Botany

61. In a growing population of a country,

A pre-reproductive individuals are more than the reproductive individuals

B reproductive individuals are less than the post-reproductive individuals

C pre-reproductive individuals are less than the reproductive individuals

D reproductive and pre-reproductive individuals are equal in number

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62. Which one of the following plants shows a very close relationship with a species of moth, where none of the two can complete its life cycle without the other?

A Hydrilla

B Yucca

C Viola

D Banana

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63. Species occurring in different geographical areas are called as

A sibling

B sympatric

C allopatric

D neopatric

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64. Plants such as Prosopis, Acacia and Capparis represent examples of tropical

A thorn forests

B deciduous forests

C evergreen forests

D grasslands

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65. Which of the following is not true for a species?

A Members of a species can interbreed

B Gene flow does not occur between the populations of a species

C Each species is reproductively isolated from every other species

D Variations occur among members of a species

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66. A high density of elephant population in an area can result in

A intra specific competition

B inter specific competition

C predation on one another

D mutualism

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67. In increasing order of organizational complexity, which one of the following is the correct sequence?

A Population, species, community, ecosystem

B Population, variety, species, ecosystem

C Population, ecosystem, species, community

D Species, variety, ecosystem, community

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68. The concept that population tends to increase geometrically while food supply increases arithmetically was put forward by

A Stuart Mill

B Adam Smith

C Charles Darwin

D Thomas Malthus

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69. World Ozone Day is celebrated on

A $${5^{th}}\,{\text{June}}$$

B $${21^{st}}\,{\text{April}}$$

C $${22^{nd}}\,{\text{April}}$$

D $${16^{th}}\,{\text{September}}$$

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70. Association of animals when both partners are benefitted

A colony

B mutualism

C commensalism

D amensalism

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61. In a growing population of a country,

62. Which one of the following plants shows a very close relationship with a species of moth, where none of the two can complete its life cycle without the other?

63. Species occurring in different geographical areas are called as

64. Plants such as Prosopis, Acacia and Capparis represent examples of tropical

65. Which of the following is not true for a species?

66. A high density of elephant population in an area can result in

67. In increasing order of organizational complexity, which one of the following is the correct sequence?

68. The concept that population tends to increase geometrically while food supply increases arithmetically was put forward by

69. World Ozone Day is celebrated on

70. Association of animals when both partners are benefitted

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