Class 10 Science - Chapter Control and Coordination NCERT Solutions | The brain is responsible for (a) thin

Draw the structure of a neuron and explain its function.

Which signals will get disrupted in case of a spinal cord injury?

How does chemical coordination take place in animals?

Compare and contrast nervous and hormonal mechanisms for control and coordination in animals.

Why is the use of iodised salt advisable?

How do we detect the smell of an agarbatti (incense stick)?

How do auxins promote the growth of a tendril around a support?

How does our body respond when adrenaline is secreted into the blood?

Which part of the brain maintains posture and equilibrium of the body?

What are plant hormones?

Did Döbereiner’s triads also exist in the columns of Newlands’ Octaves? Compare and find out.

What is a good source of energy?

Why is diffusion insufficient to meet the oxygen requirements of multi-cellular organisms like humans?

What are trophic levels? Give an example of a food chain and state the different trophic levels in it.

What changes can you make in your habits to become more environment-friendly?

What is the importance of DNA copying in reproduction?

If a trait A exists in 10% of a population of an asexually reproducing species and a trait B exists in 60% of the same population, which trait is likely to have arisen earlier?

Why should a magnesium ribbon be cleared before burning in air?

Define the principal focus of a concave mirror.

You have been provided with three test tubes. One of them contains distilled water and the other two contain an acidic solution and a basic solution, respectively. If you are given only red litmus paper, how will you identify the contents of each test tube?

How does the electronic configuration of an atom relate to its position in the Modern Periodic Table?

What are alloys?

What is the principle of an electric motor?

Why are the small numbers of surviving tigers a cause of worry from the point of view of genetics?

Why does the Sun appear reddish early in the morning?

The anther contains

(a) sepals.
(b) ovules.
(c) pistil.
(d) pollen grains.

What is the far point and near point of the human eye with normal vision?

A solution of a substance 'X' is used for whitewashing.

   (i)  Name the substance 'X' and write its formula.
   (ii) Write the reaction of the substance 'X' named in (i) above with water.

What is the difference between displacement and double displacement reactions? Write equations for these reactions.

Compute the heat generated while transferring 96000 coulomb of charge in one hour through a potential difference of 50 V.