NSTSE (National Science Talent Search Exam- Unified Council) Class 8: Questions 1413 - 1419 of 2028

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Question number: 1413

» Biology » Reaching the Age of Adolescence

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Question

Which of the following is a secondary sexual characteristic of a boy?

Choices

Choice (4) Response

a.

Growth of scrotum

b.

More muscle mass

c.

Rounder hips

d.

Question does not provide sufficient data or is vague

Question number: 1414

» Biology » Reaching the Age of Adolescence

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Question

Excess level of the cortisol hormone in the human body causes:

Choices

Choice (4) Response

a.

Hypothyroidism

b.

Myxedema

c.

Cushing disease

d.

Addison’s disease

Question number: 1415

» Biology » Conservation of Plants and Animals

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Question

Ecological pyramids are:

Choices

Choice (4) Response

a.

Food chains on the basis of number

b.

Food chains on the basis of biomass productivity

c.

Food chains on the basis of energy

d.

All a. , b. and c. are correct

Question number: 1416

» Biology » Conservation of Plants and Animals

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Question

The region of the surface and atmosphere of the earth or another planet occupied by living organisms is known as:

Choices

Choice (4) Response

a.

Bioconservation

b.

Biocommunity

c.

Biosphere

d.

Biodiversity

Question number: 1417

» Biology » Reaching the Age of Adolescence

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Question

Allosomes are called as:

Choices

Choice (4) Response

a.

Giant chromosomes

b.

Sex chromosomes

c.

Plasmid

d.

Homologous chromosomes

Question number: 1418

» Biology » Reproduction in Animals

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MCQ▾

Question

What is the sexual reproduction?

Choices

Choice (4) Response

a.

Sexual reproduction is unisexual and bisexual

b.

Two individuals to form a third unique offspring

c.

Reproduction involving the union of gametes

d.

All a. , b. and c. are correct

Question number: 1419

» Biology » Reproduction in Animals

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MCQ▾

Question

Structure is the sites of sperm production are called:

Choices

Choice (4) Response

a.

Ductus deferens

b.

Seminiferous tubules

c.

Interstitial cells

d.

Epididymis

Developed by: