NCERT Solutions For Class 12 Biology Chapter 15: Biodiversity and Conservation

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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

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.
Assertion (A) : The population of melanized moths increased in areas after Industrial Revolution.
Reason (R) : In Industrial environment lichen covered trees were replaced by soot-covered trees offering better camouflage to dark coloured moths.

Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
Assertion (A) is true, but Reason (R) is false.
Assertion (A) is false, but Reason (R) is true.

View Solution

2.
Assertion (A) : The milk produced by transgenic cow 'Rosie' was nutritionally more balanced product for human babies than natural cow milk.
Reason (R) : It was human protein enriched milk containing human alpha lactalbumin.

Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
Assertion (A) is true, but Reason (R) is false.
Assertion (A) is false, but Reason (R) is true.

View Solution

3.
Draw a neat diagram of megasporangium of an angiosperm and label any six parts.

View Solution

4.
Mention the source and the functions of the above mentioned hormones.

View Solution

5.
Assertion (A): Repetitive sequences make up a very large portion of human genome.
Reason (R): Repetitive sequences do not have direct coding functions in the genome.

Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
Assertion (A) is true, but Reason (R) is false.
Assertion (A) is false, but Reason (R) is true.

View Solution

6.
Assertion (A): The embryo with 8 to 16 blastomeres is called a morula.
Reason (R): The morula continues to divide and transform into trophoblast.

Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
Assertion (A) is true, but Reason (R) is false.
Assertion (A) is false, but Reason (R) is true.

View Solution

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

NCERT Solutions for Class 12 Biology Chapter 15

Class 12 Biology Chapter 15 Biodiversity and Conservation: Important Topics

Loss of Biodiversity

CBSE CLASS XII Related Questions

1.
Assertion (A) : The population of melanized moths increased in areas after Industrial Revolution.
Reason (R) : In Industrial environment lichen covered trees were replaced by soot-covered trees offering better camouflage to dark coloured moths.

2.
Assertion (A) : The milk produced by transgenic cow 'Rosie' was nutritionally more balanced product for human babies than natural cow milk.
Reason (R) : It was human protein enriched milk containing human alpha lactalbumin.

3.
Draw a neat diagram of megasporangium of an angiosperm and label any six parts.

4.
Mention the source and the functions of the above mentioned hormones.

5.
Assertion (A): Repetitive sequences make up a very large portion of human genome.
Reason (R): Repetitive sequences do not have direct coding functions in the genome.

6.
Assertion (A): The embryo with 8 to 16 blastomeres is called a morula.
Reason (R): The morula continues to divide and transform into trophoblast.

Similar Biology Concepts

Comments

dOGVmW

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

NCERT Solutions for Class 12 Biology Chapter 15

Class 12 Biology Chapter 15 Biodiversity and Conservation: Important Topics

Loss of Biodiversity

CBSE CLASS XII Related Questions

1.Assertion (A) : The population of melanized moths increased in areas after Industrial Revolution. Reason (R) : In Industrial environment lichen covered trees were replaced by soot-covered trees offering better camouflage to dark coloured moths.

2.Assertion (A) : The milk produced by transgenic cow 'Rosie' was nutritionally more balanced product for human babies than natural cow milk. Reason (R) : It was human protein enriched milk containing human alpha lactalbumin.

3.Draw a neat diagram of megasporangium of an angiosperm and label any six parts.

4.Mention the source and the functions of the above mentioned hormones.

5.Assertion (A): Repetitive sequences make up a very large portion of human genome. Reason (R): Repetitive sequences do not have direct coding functions in the genome.

6.Assertion (A): The embryo with 8 to 16 blastomeres is called a morula. Reason (R): The morula continues to divide and transform into trophoblast.

Similar Biology Concepts

Comments

dOGVmW

1.
Assertion (A) : The population of melanized moths increased in areas after Industrial Revolution.
Reason (R) : In Industrial environment lichen covered trees were replaced by soot-covered trees offering better camouflage to dark coloured moths.

2.
Assertion (A) : The milk produced by transgenic cow 'Rosie' was nutritionally more balanced product for human babies than natural cow milk.
Reason (R) : It was human protein enriched milk containing human alpha lactalbumin.

3.
Draw a neat diagram of megasporangium of an angiosperm and label any six parts.

4.
Mention the source and the functions of the above mentioned hormones.

5.
Assertion (A): Repetitive sequences make up a very large portion of human genome.
Reason (R): Repetitive sequences do not have direct coding functions in the genome.

6.
Assertion (A): The embryo with 8 to 16 blastomeres is called a morula.
Reason (R): The morula continues to divide and transform into trophoblast.