NCERT Solutions for class 12 biology chapter 15:  Biodiversity and Conservation

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Jasmine Grover

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NCERT Solutions for Class 12 Biology Chapter 15 Biodiversity and Conservation are provided in this article. It covers all the important definitions, concepts, and methodologies that will be really beneficial for the students appearing for CBSE Class 12 Exam 2022-23. The important topics that are included in this chapter are:

Expected no. of Questions: 1-2 questions of around 4 marks.

Download PDF: NCERT Solutions for Class 12 biology chapter 15 Biodiversity and Conservation


NCERT Solutions for Class 12 Biology Chapter 15

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions


Class 12 Biology Chapter 15 Biodiversity and Conservation: Important Topics

Biodiversity conservation is referred to as the protection, upliftment, as well as management of biodiversity, deriving sustainable benefits for present and future generations. In other words, it is the protection and management of biodiversity in order to obtain resources for sustainable development. Biodiversity is the variability of life on earth, which can be conserved in the following ways: In-situ Conservation and Ex-situ Conservation.

Biodiversity conservation consists of three main objectives:

  • To preserve the diversity of species
  • Sustainable utilization of species and ecosystem
  • To maintain life-supporting systems and essential ecological processes
  • Loss of Biodiversity

Biodiversity loss is the decline or disappearance of biological diversity, or the local reduction or loss of species in a certain habitat, leading to the loss of biological diversity. The term biodiversity or biological diversity refers to the number of genes, species, and individual organisms within a given species within a defined geographic area, ranging from the smallest ecosystem to the global biosphere.


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CBSE CLASS XII Related Questions

  • 1.

    Explain any two methods of vectorless gene transfer.


      • 2.

        Name the most commonly used bioreactor. List the advantages of the bioreactor. Also write the importance of sampling ports.


          • 3.

            Given below is an equation describing the growth pattern of a population :

            \( \dfrac{dN}{dt} = rN \)

            (a) Mention the type of growth model or growth pattern of the population described by the given equation.

            (b) What does r in the equation signify ?

            (c) Mention the type of growth curve that will be obtained if the population density (N) is plotted against time (t).

            (d) According to you, will the resource availability be limited or unlimited for this type of growth in the given population ?


              • 4.

                Explain the mutually rewarding relationship between Yucca plant and species of moth.


                  • 5.

                    Which type of selection is industrial melanism observed in moth, Biston betularia ?

                      • Stabilising
                      • Directional
                      • Disruptive
                      • Artificial

                    • 6.

                      Pollination success will be reduced unless the orchid flower co-evolves with the pollinator. Explain.

                        CBSE CLASS XII Previous Year Papers

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