NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 1833 - 1839 of 2000

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Question number: 1833

» Biology » Natural Resources

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MCQ▾

Question

Conservation of natural resources is required

Choices

Choice (4) Response

a.

to preserve biodiversity

b.

to ensure survival of human race

c.

to maintain ecological balance for supporting life

d.

All a. , b. and c. are correct

Question number: 1834

» Biology » Improvement in Food Resources

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Question

Exotic breeds

Choices

Choice (4) Response

a.

introduced to other places

b.

require special environment for growth and development and productivity

c.

are foreign breeds

d.

All a. , b. and c. are correct

Question number: 1835

» Biology » Improvement in Food Resources

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Question

Methods of natural breeding in animals

Choices

Choice (4) Response

a.

Inbreeding

b.

Cross breeding

c.

Outbreeding

d.

All a. , b. and c. are correct

Question number: 1836

» Biology » Natural Resources

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Question

What do you mean by anthropogenic extinction?

Choices

Choice (4) Response

a.

Extinction due to inability to adapt

b.

Extinction due to any natural calamities like earthquakes, tsunamis etc.

c.

Extinction due to human activities

d.

Extinction due to forest fire

Question number: 1837

» Biology » Improvement in Food Resources

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Question

Inbreeding depression

Choices

Choice (4) Response

a.

Breeding of more closely related individual within the same breed

b.

Reduces fertility

c.

Increases homozygosity

d.

All a. , b. and c. are correct

Question number: 1838

» Biology » Improvement in Food Resources

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Question

Which of the following is not a freshwater fish?

Choices

Choice (4) Response

a.

Tilapia

b.

Catla

c.

Pomfret

d.

Rohu

Question number: 1839

» Biology » Improvement in Food Resources

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Question

Which of the following is GM crop plant?

Choices

Choice (4) Response

a.

BT cotton plant

b.

Insect resistant plant

c.

Herbicide resistant plants

d.

All a. , b. and c. are correct

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