AIIMS Biology: Questions 378 - 383 of 405

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Question number: 378

» Human Physiology » Neural Control and Coordination » Neuron and Nerves

MCQ▾

Question

Jacobson’s organ in man

Choices

Choice (4) Response

a.

Is a vestigial organ.

b.

Functions as gustatory organ.

c.

Functions as smelling organs.

d.

Functions as pain sensory organ.

Question number: 379

» Human Physiology » Body Fluids and Circulation » Human Circulatory System-Structure of Human Heart and Blood Vessels

MCQ▾

Question

Stimulation of the vagus nerve will make the heart beat

Choices

Choice (4) Response

a.

Slower

b.

Normal

c.

70 times/minute

d.

Faster

Question number: 380

» Ecology and Environment » Environmental Issues » Agrochemicals and Their Effects

Appeared in Year: 1985

MCQ▾

Question

Exposure of plants to high fluoride concentration results in necrosis or chlorosis characteristically in - [CPMT]

Choices

Choice (4) Response

a.

Leaf tip and leaf margins

b.

Petiole but not in lamina

c.

Only mid rib in lamina

d.

Stem tips only

Question number: 381

» Genetics and Evolution » Evolution » Origin of Life

MCQ▾

Question

The idea the life originates from pre-exiting life is referred as

Choices

Choice (4) Response

a.

Extraterrestrial theory

b.

Biogenesis theory

c.

Abiogenesis theory

d.

Special creation theory

Question number: 382

» Genetics and Evolution » Evolution » Origin of Life

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.

CH4, CO2, O2 and H2

b.

Steam, CH4, H2 and NH3

c.

CH4, O2, H2 and steam

d.

CH4, H2, N2 and steam

Question number: 383

» Ecology and Environment » Ecosystem » Nutrient Cycling

MCQ▾

Question

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

Choices

Choice (4) Response

a.

Rate of decomposition of other components will be very high

b.

Mineral movement will be blocked

c.

Energy flow will be blocked

d.

Herbivores will not receive solar energy

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