Ecology and Environment-Organisms and Environment (NEET Biology): Questions 5 - 9 of 16

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Question number: 5

» Ecology and Environment » Organisms and Environment » Habitat and Niche

MCQ▾

Question

The change of the lighter colored variety of peppered moth Biston betularia to its darker variety (carbonaria) is due to

Choices

Choice (4) Response
a.

Deletion of a segment of gene due to wings of moth resulting in darker variety.

b.

Translocation of a block of genes in chromosomes in response to heavy carbons.

c.

Industrial carbon deposited on the wings of moth resulting in darker variety.

d.

Mutation of single Mendelian gene for survival in the smoke-laden industrial environment.

Question number: 6

» Ecology and Environment » Organisms and Environment » Habitat and Niche

MCQ▾

Question

If forest area is reduced to half, which one of the following will be a long term effect?

Choices

Choice (4) Response
a.

The natives (tribals) of that area will die on account of hunger.

b.

Cattles of that area will die due to scarcity of fodder.

c.

The diversity in germplasm will affect the crop breeding.

d.

It will be converted into large desert.

Question number: 7

» Ecology and Environment » Organisms and Environment » Habitat and Niche

MCQ▾

Question

The salinity of the tropical oceans is

Choices

Choice (4) Response
a.

Decreasing

b.

Constant

c.

Increasing

d.

Decreasing now but was increasing in past

Question number: 8

» Ecology and Environment » Organisms and Environment » Habitat and Niche

MCQ▾

Question

At which latitude, heat gain through insolation approximately equals heat loss through terrestrial radiation?

Choices

Choice (4) Response
a.

66 North and South.

b.

40 North and South

c.

42 North and South

d.

22 North and South

Question number: 9

» Ecology and Environment » Organisms and Environment » Habitat and Niche

MCQ▾

Question

Water logged soils are -

Choices

Choice (4) Response
a.

Physiologically dry

b.

With less amount of water

c.

With great amount of water

d.

Physiologically wet

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