NCERT Class 10 Chapter 8 Organisms Reproduction CBSE Board Sample Problems Very Short Answer (For CBSE, ICSE, IAS, NET, NRA 2022)

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Question

Name the artificial propagation method used for the propagation of rose plants.

Solution

Grafting.

Question

Why is reproduction so essential in living organisms?

Solution

It helps to maintain the number of individuals of a species/It helps in the survival of the species and prevents their extinction/It also leads to the evolution of the species in the long run.

Question

Enlist two contraceptive methods.

Solution

Condoms, loop or copper-T, pills, surgical methods (any two)

Question

What is the effect of DNA copying which is not perfectly accurate in the reproductive process?

Solution

The DNA copying which is not perfectly accurate in the reproductive process results in variations in populations for better survival of the species.

Question

Write names of one male and one female sex hormone.

Solution

Male sex hormone is testosterone and female sex hormone is oestrogen.

Question

List two unisexual flowers.

Solution

Watermelon and papaya are unisexual flowers.