Class 9 Science - Chapter Tissues NCERT Solutions | What is the specific function of the car

Diagrammatically show the difference between the three types of muscle fibres.

What does a neuron look like?

Draw a labelled diagram of a neuron.

Complete the table:

Give three features of cardiac muscles.

Where is apical meristem found?

What are the functions of the stomata?

What is a tissue?

How many types of elements together make up the xylem tissue? Name them.

What are the constituents of phloem?

Which of the following has more inertia: (a) a rubber ball and a stone of the same size? (b) a bicycle and a train? (c) a five-rupees coin and a one-rupee coin?

State the universal law of gravitation.

Which of the following are matter?

Chair, air, love, smell, hate, almonds, thought, cold, cold-drink, smell of perfume.

A force of 7 N acts on an object. The displacement is, say 8 m, in the direction of the force (Fig. 11.3). Let us take it that the force acts on the object through the displacement. What is the work done in this case?

What is meant by a pure substance?

How does the sound produced by a vibrating object in a medium reach your ear?

In a reaction, 5.3 g of sodium carbonate reacted with 6 g of ethanoic acid. The products were 2.2 g of carbon dioxide, 0.9 g water and 8.2 g of sodium observations are in agreement with the law of conservation of mass.

sodium carbonate + ethanoic acid → sodium ethanoate + carbon dioxide + water

What are canal rays?

State any two conditions essential for good health.

How is our atmosphere different from the atmospheres on Venus and Mars?

Complete the following table.

Why does an object float or sink when placed on the surface of water?

Write down the formulae of
(i) sodium oxide
(ii) aluminium chloride
(iii) sodium suphide
(iv) magnesium hydroxide

Compare the properties of electrons, protons and neutrons.

Write the electronic configuration of any one pair of isotopes and isobars.

Explain how defects in a metal block can be detected using ultrasound.

What is the importance of universal law of gravitation?

Identify the solutions among the following mixtures.

(a) Soil
(b) Sea water
(c) Air
(d) Coal
(e) Soda water.

Describe with the help of a diagram, how compressions and rarefactions are produced in air near a source of sound.

List any three reasons why you would think that you are sick and ought to see a doctor. If only one of these symptoms were present, would you still go to the doctor? Why or why not?