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Chapters
1: Sexual Reproduction in Flowering Plants
2: Human Reproduction
3: Reproductive Health
UNIT VII : GENETICS AND EVOLUTION
4: Principles of Inheritance and Variation
5: Molecular Basis of Inheritance
6: Evolution
UNIT VIII : BIOLOGY IN HUMAN WELFARE
7: Human Health and Disease
8: Microbes in Human Welfare
UNIT IX : BIOTECHNOLOGY
9: Biotechnology : Principles and Processes
10: Biotechnology and its Applications
UNIT X : ECOLOGY
▶ 11: Organisms and Populations
12: Ecosystem
13: Biodiversity and Conservation
![NCERT solutions for Biology [English] Class 12 chapter 11 - Organisms and Populations - Shaalaa.com](/images/biology-english-class-12_6:b1f8befaad564f848198c61748124f91.jpg "NCERT solutions for Biology [English] Class 12 chapter 11 - Organisms and Populations")
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Solutions for Chapter 11: Organisms and Populations
Below listed, you can find solutions for Chapter 11 of CBSE, Karnataka Board PUC NCERT for Biology [English] Class 12.
NCERT solutions for Biology [English] Class 12 11 Organisms and Populations EXERCISES [Page 204]
List the attributes that populations but not individuals possess.
If a population growing exponentially double in size in 3 years, what is the intrinsic rate of increase (r) of the population?
Name important defence mechanisms in plants against herbivory.
An orchid plant is growing on the branch of mango tree. How do you describe this interaction between the orchid and the mango tree?
What is the ecological principle behind the biological control method of managing with pest insects?
Define population
Define Community.
Define the following term:
Commensalism
Give one example of commensalism.
Explain parasitism.
Give one example of Parasitism.
Define the following term:
Camouflage
Give one example of Camouflage.
Define mutualism.
Explain mutualism with the help of any two examples.
Define the following term:
Interspecific competition
Give one example of Interspecific competition.
With the help of a suitable diagram describe the logistic population growth curve.
Select the statement which explains best parasitism.
One organism is benefited.
Both the organisms are benefited.
One organism is benefited, other is not affected.
One organism is benefited, other is affected.
List any three important characteristics of a population and explain.
Solutions for 11: Organisms and Populations
NCERT solutions for Biology [English] Class 12 chapter 11 - Organisms and Populations
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Concepts covered in Biology [English] Class 12 chapter 11 Organisms and Populations are Introduction of Organisms and Environment, Population and Ecological Adaptations, Population Interactions, Population Attributes, Responses to Abiotic Factors, Introduction of Organisms and Populations, Ecology (Organism, Population, Community and Biome), Organisms and Populations (Questions), Life History Variation, Major Abiotic Factors, Population Growth, Introduction of Organisms and Environment, Population and Ecological Adaptations, Population Interactions, Population Attributes, Responses to Abiotic Factors, Introduction of Organisms and Populations, Ecology (Organism, Population, Community and Biome), Organisms and Populations (Questions), Life History Variation, Major Abiotic Factors, Population Growth.
Using NCERT Biology [English] Class 12 solutions Organisms and Populations exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in NCERT Solutions are essential questions that can be asked in the final exam. Maximum CBSE, Karnataka Board PUC Biology [English] Class 12 students prefer NCERT Textbook Solutions to score more in exams.
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