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CBSE - Class 12 > Biology > Organisms and Populations Worksheets

Free CBSE - Class 12 Biology - Organisms and Populations worksheets

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1.
List the attributes that populations possess but not individuals.
2.
If a population growing exponentially double in size in 3 years, what is the intrinsic rate of increase (\(r\)) of the population?
3.
Name important defence mechanisms in plants against herbivory.
4.
An orchid plant is growing on the branch of mango tree. How do you describe this interaction between the orchid and the mango tree?
5.
What is the ecological principle behind the biological control method of managing with pest insects?
6.
Define population and community.
7.
Define the following terms and give one example for each:
(a) Commensalism
8.
Define the following terms and give one example for each:
(b) Parasitism
9.
Define the following terms and give one example for each:
(c) Camouflage
10.
Define the following terms and give one example for each:
(d) Mutualism
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Chapters in CBSE - Class 12 Biology

Biodiversity and Conservation Worksheet Biotechnology and Its Applications Worksheet Biotechnology: Principles and Processes Worksheet Ecosystem Worksheet Environmental Issues Worksheet Evolution Worksheet Human Health and Disease Worksheet Human Reproduction Worksheet Microbes in Human Welfare Worksheet Molecular Basis of Inheritance Worksheet Principles of Inheritance and Variation Worksheet Reproduction in Organisms Worksheet Reproductive Health Worksheet Strategies for Enhancement in Food Production Worksheet

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Population Dynamics and Environmental Adaptations

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