Ecosystem
Class 12 · Biology · 9 Questions
2intermediate💡 Understand1 markMCQ
Which one of the following has the largest population in a food chain?
3beginner🧠 Remember1 markMCQ
The second trophic level in a lake is
4intermediate💡 Understand1 markMCQ
Secondary producers are
5beginner🧠 Remember1 markMCQ
What is the percentage of photosynthetically active radiation (PAR) in the incident solar radiation?
7intermediate💡 Understand5 marksLong Answer
Describe the components of an ecosystem.
8intermediate💡 Understand5 marksLong Answer
Define ecological pyramids and describe with examples, pyramids of number and biomass.
9intermediate💡 Understand5 marksLong Answer
What is primary productivity? Give brief description of factors that affect primary productivity.
10intermediate💡 Understand5 marksLong Answer
Define decomposition and describe the processes and products of decomposition.
11intermediate💡 Understand5 marksLong Answer
Give an account of energy flow in an ecosystem.