AIIMS (All India Institute of Medical Sciences) Biology: Questions 382 - 386 of 467

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Question number: 382

» Genetics and Evolution » Evolution » Origin of Life

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MCQ▾

Question

In his classic experiment on the formation of amino acids, Stanley Miller an electric discharge in a mixture of

Choices

Choice (4)Response

a.

Steam, CH4, H2 and NH3

b.

CH4, H2, N2 and steam

c.

CH4, CO2, O2 and H2

d.

CH4, O2, H2 and steam

Question number: 383

» Ecology and Environment » Ecosystem » Nutrient Cycling

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MCQ▾

Question

If we completely remove decomposers from an ecosystem, the ecosystem functioning will be adversely affected because -

Choices

Choice (4)Response

a.

Energy flow will be blocked

b.

Mineral movement will be blocked

c.

Rate of decomposition of other components will be very high

d.

Herbivores will not receive solar energy

Question number: 384

» Ecology and Environment » Environmental Issues » Air Pollution and Its Control

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Appeared in Year: 1979

MCQ▾

Question

Which will not cause any atmospheric pollution - [CPMT]

Choices

Choice (4)Response

a.

Carbon monoxide

b.

Carbon dioxide

c.

Sulphur dioxide

d.

Hydrogen

Question number: 385

» Structural Organization in Animals and Plants » Animal Tissues - Morphology, Anatomy and Functions - Mainly Cockroach » Respiratory System

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MCQ▾

Question

Plasmotomy occurs in

Choices

Choice (4)Response

a.

Plasmodium

b.

Aurelia

c.

Amoeba

d.

Opalina

Question number: 386

» Ecology and Environment » Environmental Issues » Ozone Depletion

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Appeared in Year: 2005

Assertion-Reason▾

Question

Assertion (Ꭺ)

Presently, the global atmosphere is warming up.

Reason (Ꭱ)

The depletion of stratospheric ozone layer has resulted in increase in ultraviolet radiations reaching the earth.

Choices

Choice (4)Response

a.

Ꭺ is false but Ꭱ is true

b.

Both Ꭺ and Ꭱ are false

c.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

d.

Ꭺ is true but Ꭱ is false

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