Tamil Nadu (English Medium) Plus 1 Biology Science Study Materials, Online Learning, Question Papers, Classnotes, Practice Test, MCQ | Smartindia Educational Program : www.smartindia.net.in

Question-1 Littotal zone is located along the

(A) high mountains	(B)sea
(C)rivers	(D)desert

Question-2 Which of the following plants develop characters of xerophytes?

(A) Heliophytes	(B)Sciophytes
(C)Hydrophytes	(D)Halophytes

Question-3 Standing crop refers to

(A) all the photosynthetic living forms in an area	(B)all the living matter in a an area
(C)the amount of living matter in a component population of an ecosystem at any time	(D)all the crop plants in an area

Question-4 In plant succession, when climax is reached, the net productivity.

(A) Continues to increase	(B)becomes halved
(C)become stable	(D)becomes zero

Question-5 When the two ecosystem overlap each other, the areas is called

(A) habitat	(B)niche
(C)ecotone	(D)ecotype

Question-6 Most diverse organisms of an ecosystem are

(A) producers	(B)consumers
(C)carnivores	(D)decomposers

Question-7 Pyramid of energy in ecosystem is

(A) always upright	(B)always inverted
(C)mostly upright	(D)mostly inverted

Question-8 The transition zone between two communities is known as

(A) ecotone	(B)keystone species
(C)edge species	(D)critical link species

Question-9 Which of the following pyramid is always upright and can never be inverted?

(A) Pyramid of biomass	(B)Pyramid of number
(C)Pyramid of energy	(D)Both a and c

Question-10 In a grazing food chain carnivores may also the referred to as

(A) primary producers	(B)secondary producers
(C)primary consuemrs	(D)secondary consumers

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Plus 1 Biology Science

Tamil Nadu (English Medium)

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