CBSE Class-7 Science: Questions 204 - 210 of 322

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Question number: 204

» Transportation in Animals and Plants » Circulatory System » Blood Vessels

MCQ▾

Question

Thick walled vessels with a narrow lumen are:

Choices

Choice (4) Response

a.

Capillaries

b.

Veins

c.

Arteries

d.

Question does not provide sufficient data or is vague

Question number: 205

» Transportation in Animals and Plants » Circulatory System » Blood

MCQ▾

Question

The functions of blood are:

Choices

Choice (4) Response

a.

Transport oxygen from lungs to the body cells

b.

It transports digested food from small intestine to the body cells.

c.

To transport liquid waste from cells to the excretory system

d.

All a. , b. and c. are correct

Question number: 206

» Soil » Soil and Crops » Soil Erosion

MCQ▾

Question

Some methods of soil conservation are:

Choices

Choice (4) Response

a.

Afforestation

b.

Contour ploughing

c.

Shelter belts

d.

All a. , b. and c. are correct

Question number: 207

» Reproduction in Plants » Sexual Reproduction » Pollination

MCQ▾

Question

The process of transfer of pollen grains to the stigma of the pistil is known as:

Choices

Choice (4) Response

a.

Self- pollination

b.

Pollination

c.

Cross- pollination

d.

None of the above

Question number: 208

» Respiration in Organisms » Respiration » Cellular Respiration

MCQ▾

Question

The process of breakdown of food in the cell with the release of energy is called as:

Choices

Choice (4) Response

a.

Cellular respiration

b.

Anaerobic respiration

c.

Aerobic respiration

d.

None of the above

Question number: 209

» Reproduction in Plants » Seed Dispersal » Method of Seed Dispersal

MCQ▾

Question

Agents of seed dispersal are:

Choices

Choice (4) Response

a.

Explosion

b.

Animals

c.

Water

d.

All a. , b. and c. are correct

Question number: 210

» Transportation in Animals and Plants » Excretion in Animals » Dialysis

MCQ▾

Question

The process of artificial filtration of blood in case of kidney failure is called as:

Choices

Choice (4) Response

a.

Dialysis

b.

Artificial Kidney

c.

Sweating

d.

Question does not provide sufficient data or is vague

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