Organisms and Populations
Class 12 · Biology · 7 Questions
2intermediate🔧 Apply2 marksNumerical
If a population growing exponentially double in size in 3 years, what is the intrinsic rate of increase (r) of the population?
3beginner🧠 Remember2 marksShort Answer
Name important defence mechanisms in plants against herbivory.
4intermediate💡 Understand2 marksShort Answer
An orchid plant is growing on the branch of mango tree. How do you describe this interaction between the orchid and the mango tree?
5intermediate💡 Understand2 marksShort Answer
What is the ecological principle behind the biological control method of managing with pest insects?
6beginner🧠 Remember2 marksShort Answer
Define population and community.
9beginner💡 Understand1 markMCQ
Select the statement which explains best parasitism.
10intermediate💡 Understand5 marksLong Answer
List any three important characteristics of a population and explain.