The lower most layer of atmosphere in which man and other living organisms exist is called
Options
(a) stratosphere (b) mesosphere (c) thermosphere (d) trophosphere
Correct Answer:
trophosphere
Explanation:
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The part of earth and atomosphere supporting life is
Options
(a) biota (b) ecotone (c) biome (d) biosphere
Correct Answer:
biosphere
Explanation:
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The percent law of energy transfer, in a food chain, was enunciated by
Options
(a) Lindeman (b) Haeckel (c) Elton (d) Schimper
Correct Answer:
Lindeman
Explanation:
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The place was rocky and burried but now there is a green forest, the sequence of origin is
Options
(a) lichen, moss, annual herbs and woody shrubs (b) moss, lichen, annual herbs and […]
The plants, growing on saline soils are called
Options
(a) mesophytes (b) halophytes (c) xerophytes (d) hydrophytes
Correct Answer:
halophytes
Explanation:
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The relationship between two organisms in which one is benefitted while the other is neither harmed nor benefitted is known as
Options
(a) Commensalism (b) Parasitism (c) Proto-cooperation (d) Mutualism
Correct Answer:
Commensalism
The relationship between two organisms where one receives benefit at the cost of the other is known as
Options
(a) parasitism (b) predation (c) scavenging (d) symbiosis
Correct Answer:
parasitism & predation
Explanation: […]
The soil particles, particularly clay and organic matter in soil contain negative charges that attract positively charged ions such as
Options
(a) K⁺⁺ (b) Mg⁺ (c) Ca⁺⁺ (d) all of these
Correct Answer: […]
The sun loving plants are referred as
Options
(a) halophytes (b) heterotrophs (c) sciophytes (d) heliophytes
Correct Answer:
heliophytes
Explanation:
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The term ecosystem was first coined by
Options
(a) Odum (b) Reither (c) Tansley (d) both (a) & (b)
Correct Answer:
Tansley
Explanation:
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