Ecology and Environment-Ecosystem (NEET Biology): Questions 7 - 12 of 109

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Question number: 7

» Ecology and Environment » Ecosystem » Patterns, Components

MCQ▾

Question

An area of soil is thoroughly wetted and allowed to drain until capillary movement of water is stopped. The water contents of the soil will give an estimate of its

Choices

Choice (4) Response

a.

Storage water

b.

Field capacity

c.

Gravitational water

d.

Capillary water

Question number: 8

» Ecology and Environment » Ecosystem » Productivity and Decomposition

MCQ▾

Question

The total rate of photosynthesis including the organic matter used up in respiration during definite period is known as

Choices

Choice (4) Response

a.

Secondary productivity.

b.

Gross primary productivity.

c.

Net primary productivity.

d.

Question does not provide sufficient data or is vague

Question number: 9

» Ecology and Environment » Ecosystem » Nutrient Cycling

MCQ▾

Question

The agent/s which make/s free atmospheric nitrogen available to plants is/are

Choices

Choice (4) Response

a.

Lightning

b.

Free living nitrogen fixing bacteria

c.

Symbiotic nitrogen fixing bacteria

d.

All of the above

Question number: 10

» Ecology and Environment » Ecosystem » Patterns, Components

MCQ▾

Question

Study of environment and animal relation is

Choices

Choice (4) Response

a.

Ecosystem

b.

Biotic community

c.

Ecology

d.

Phytosociology

Question number: 11

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

MCQ▾

Question

If decomposers are removed what will happen to ecosystem?

Choices

Choice (4) Response

a.

Rate of decomposition of mineral increases.

b.

Energy cycle is stopped.

c.

Consumers cannot absorb solar energy.

d.

Mineral cycle is stopped.

Question number: 12

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

MCQ▾

Question

In a food web, each successive trophic level has

Choices

Choice (4) Response

a.

Non estimated energy content

b.

More total energy content

c.

Less total energy content

d.

Increased total energy

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