KVPY Stream-SA (Class 11) Biology: Questions 246 - 253 of 304

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Question number: 246

» Human Physiology » Body Fluids and Circulation » Composition of Blood

MCQ▾

Question

Haemoglobin is a

Choices

Choice (4) Response

a.

Magnesium containing pigment

b.

Calcium containing pigment

c.

Iron containing pigment

d.

Copper containing pigment

Question number: 247

» Human Physiology » Body Fluids and Circulation » ECG

MCQ▾

Question

ECG records

Choices

Choice (4) Response

a.

Quantity of blood pumped per minute.

b.

Potential differences that accompany cardiac cycle.

c.

Electric current of the body.

d.

Pulse rate.

Question number: 248

» Human Physiology » Body Fluids and Circulation » Composition of Lymph and Its Function

MCQ▾

Question

The principle function of the lymph node in the man is

Choices

Choice (4) Response

a.

Destruction of old RBC.

b.

Production of WBC.

c.

Destruction of old WBC.

d.

Collection and destruction of pathogens present in blood.

Question number: 249

» Ecology and Environment » Ecosystem » Patterns, Components

MCQ▾

Question

Who proposed that ecosystem is symbol of structure & function of nature -

Choices

Choice (4) Response

a.

Gardner

b.

Reiter

c.

Tansley

d.

Odum

Question number: 250

» Ecology and Environment » Ecosystem » Productivity and Decomposition

MCQ▾

Question

Which biotic components mainly help in recycling of minerals -

Choices

Choice (4) Response

a.

Decomposers

b.

Consumers

c.

Producers

d.

Question does not provide sufficient data or is vague

Question number: 251

» Ecology and Environment » Ecosystem » Pyramids of Number, Biomass, Energy

Appeared in Year: 1980

MCQ▾

Question

Trophic levels are formed by - [CPMT]

Choices

Choice (4) Response

a.

Only carnivores

b.

Origanisms linked in food chain

c.

Only plants

d.

Only animals

Question number: 252

» Ecology and Environment » Ecosystem » Productivity and Decomposition

MCQ▾

Question

Vultures in an ecosystem are -

Choices

Choice (4) Response

a.

Consumers

b.

Predators

c.

Top carnivores

d.

Scavengers

Question number: 253

» Ecology and Environment » Environmental Issues » Greenhouse Effect and Global Warning

MCQ▾

Question

Maximum greenhouse gas released by which country

Choices

Choice (4) Response

a.

France

b.

Britain

c.

U. S. A

d.

India

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