Home
Current Affairs January 2024

What is the correct answer?

4

Species that occur in different geographical regions separated by special barriers are

A. Allopatric

B. Autogenic

C. Sympatric

D. Allogenic

Correct Answer :

A. Allopatric


Related Questions

What is the correct answer?

4

Which of the following atmospheric pollutants is not produced by the exhaust of motor vehicles in Delhi

A.
 Fly ash    

B. so2

C.  Hydrocarbon gases

D. CO

What is the correct answer?

4

Ultra-violet radiation from sunlight causes the reaction that produce

A. CO    

B. so2

C. o3

D.
 Fluorides

What is the correct answer?

4

Which of the following is normally not an important atmospheric pollutant

A.  CO    

B. co2

C. so2

D. Hydro-carbon

What is the correct answer?

4

Soil particles are arranged in order of increasing size are

A. sand, silt and clay

B. silt, sand and clay

C. clay, sand and silt

D. clay, silt and sand

What is the correct answer?

4

A food-chain consists of

A. producer only

B. producers and consumers

C. consumers only

D. decomposers only

What is the correct answer?

4

Which of the following is an anti-forest conservation activity ?

A. Economy in timbering

B. Clear falling of trees

C. Prevention of fibres

D. Preservation of wild animals

What is the correct answer?

4

Birth rate under ideal conditions is known as

A. mortality

B. natality

C. both and

D. none of these

What is the correct answer?

4

One always finds many more of the prey species than of the predator. This is called a

A. food web

B. pyramid of numbers

C. pyramid of succession

D. none of these

What is the correct answer?

4

Trophic levels are formed by

A. plants only

B. animals only

C. carnivorous animals only

D. organisms linked in food-chains

What is the correct answer?

4

The source of energy in an ecosystem is

A. light received from sun

B. heat liberated during respiration

C. heat liberated during fermentation

D. none of these

What is the correct answer?

4

Pedology is the study of

A. soil

B. rocks

C. animal diseases

D. locomotion of animals

What is the correct answer?

4

Which is the correct sequence in a food-chain

A. Grass > Wolf �Deer -^Buffalo

B. Grass � Snake �Insect �Deer

C. Grass -�Insect >Birds >Snake

D. Bacteria ->Grass ~>Rabbit -�Wolf

What is the correct answer?

4

The first fish that eats upon the planktonic form is

A. carnivore

B. primary consumer

C. secondary consumer

D. decomposers

What is the correct answer?

4

An organism which lives at the expense of another organism is called

A. predator

B. prey

C. host

D. parasite

What is the correct answer?

4

When a big fish eats a small fish, which eats water fleas supported by phyto-plankton, the water-fleas are

A. producers

B. primary consumers

C. secondary consumers

D. top consumers in the food-chain

What is the correct answer?

4

Species that occur in different geographical regions separated by special barriers are

A. Allopatric

B. Autogenic

C. Sympatric

D. Allogenic

What is the correct answer?

4

Gas liberated in Bhopal gas tragedy was

A. methyl isocyanide

B. phenyl isocyanide

C. ethylene

D. acetylene

What is the correct answer?

4

Which one is the direct ecological factor ?

A. Soil structure

B. Wind

C. Temperature

D. Climate

What is the correct answer?

4

A pond is

A. a biome

B. a natural ecosystem

C. an artificial ecosystem

D. a community of plants and animals

What is the correct answer?

4

The main cause of soil erosion in India is

A. drought

B. heavy rainfall

C. deforestation

D. heavy winds

What is the correct answer?

4

Strontium- 90 can cause

A. lung diseases

B. bone cancer

C. leukaemia

D. skin cancer

What is the correct answer?

4

The whale is

A. primary producer

B. carnivorous secondary consumer

C. herbivorous

D. a decomposers

What is the correct answer?

4

All the living organisms on earth constitute

A. biome

B. biosphere

C. community

D. population

What is the correct answer?

4

In an ecosystem the population of

A. primary producers is larger than that of primary consumers

B. secondary consumers is the largest because they are most powerful

C. primary consumers is the least dependent upon primary producers.

D. primary consumers outnumber primary producers

What is the correct answer?

4

Plants growing on sea shores show characters of

A. hydrophytes

B. mesophytes

C. xerophytes

D. halophytes

What is the correct answer?

4

When compared to the trophic level above, the total energy present in any given trophic level is necessarily

A. greater

B. lesser

C. the same

D. very small

What is the correct answer?

4

The transitional zone where two different types of communities meet is called the

A. Ecotype

B. Littoral

C. Ecotone

D. Both and

What is the correct answer?

4

Silent valley of Kerala is preserved because

A. it contains timber trees

B. it harbours lions

C. it harbours elephants

D. it contains rare animals and plants

What is the correct answer?

4

Some animals have a constant high body temperature. This is because

A. they like this temperature

B. they can work fast in the temperature

C. they prefer to live in cold region

D. they are active animals

What is the correct answer?

4

Synecology is the study of

A. community in relation to environment

B. individuals

C. environment

D. water