NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 1166 - 1171 of 1484

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Question number: 1166

» Biology » Control and Coordination

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Question

Which of the following hormones plays an important function of production of breast milk?

Choices

Choice (4)Response

a.

Oxytocin

b.

Testosterone

c.

Prolactin

d.

Progesterone

Question number: 1167

» Biology » Hereditary and Variation

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Question

Which of the following are examples of homologous origin?

Choices

Choice (4)Response

a.

Wings of bats and Wings of butterfly

b.

Forelimb of a frog and Wings of birds

c.

Forelimb of Frog and forelimb of man

d.

Question does not provide sufficient data or is vague

Question number: 1168

» Biology » Control and Coordination

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Question

Which of the following movements is induced by a chemical stimulus?

Choices

Choice (4)Response

a.

Thermonasty

b.

Chemonasty

c.

Nyctinasty

d.

Photonasty

Question number: 1169

» Physics » Electricity

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Question

An electric fan rated operates in a day. What is the cost of the energy to operate it for at ?

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 1170

» Biology » Reproduction

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Question

Which of the following plants bear the following structure are shown in below?

Image showing Reproductive structure.

Image Showing Reproductive Structure

Choices

Choice (4)Response

a.

Mango

b.

Conifer

c.

Fern

d.

All of the above

Question number: 1171

» Biology » Hereditary and Variation

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MCQ▾

Question

Mutation is:

Choices

Choice (4)Response

a.

Sudden, irreversible and random change in the genotype of an organism which leads to phenotypic change in that organism

b.

Sudden change in phenotype and genotypic expression

c.

Variation between the cell or DNA due to the environmental factor

d.

All a. , b. and c. are correct

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