Class 10 Science - Chapter How do Organism Reproduce? NCERT Solutions | Asexual reproduction takes place through

Why is variation beneficial to the species but not necessarily for the individual?

Draw a labelled diagram of the longitudinal section of a flower.

What are the functions performed by the testis in human beings?

Why does menstruation occur?

How will an organism be benefited if it reproduces through spores?

Can you think of reasons why more complex organisms cannot give rise to new individuals through regeneration?

How does the embryo get nourishment inside the mother’s body?

How does reproduction help in providing stability to populations of species?

What is the importance of DNA copying in reproduction?

What are the advantages of sexual reproduction over asexual reproduction?

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 difference between a reflex action and walking?

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?

Name the substance which on treatment with chlorine yields bleaching powder.

A copper wire has diameter 0.5 mm and resistivity of 1.6 × 10^–8 Ω m. What will be the length of this wire to make its resistance 10 Ω? How much does the resistance change if the diameter is doubled?

What advantage over an aquatic organism does a terrestrial organism have with regard to obtaining oxygen for respiration?

How is the concentration of hydronium ions (H₃O⁺) affected when a solution of an acid is diluted?

How does chemical coordination occur in plants?

Why is a normal eye not able to see clearly the objects placed closer than 25 cm?

On what factors does the resistance of a conductor depend?

What were the limitations of Newlands’ Law of Octaves?

The far point of a myopic person is 80 cm in front of the eye. What is the nature and power of the lens required to correct the problem?

Why is damage to the ozone layer a cause for concern? What steps are being taken to limit this damage?