EASY
12th Tamil Nadu Board
IMPORTANT
Earn 100

What is Albedo effect and write their effects ?

Important Questions on Principles of Ecology

MEDIUM
12th Tamil Nadu Board
IMPORTANT
The organic horizon is generally absent from agricultural soils because tilling, e.g., plowing, buries organic matter. Why is an organic horizon generally absent in desert soils ?
HARD
12th Tamil Nadu Board
IMPORTANT
Soil formation can be initiated by biological organisms. Explain how?
HARD
12th Tamil Nadu Board
IMPORTANT
Sandy soil is not suitable for cultivation. Explain why?
MEDIUM
12th Tamil Nadu Board
IMPORTANT
Describe the mutual relationship between the fig and wasp and comment on the phenomenon that operates in this relationship.
EASY
12th Tamil Nadu Board
IMPORTANT
Lichen is considered as a good example of obligate mutualism. Explain.
MEDIUM
12th Tamil Nadu Board
IMPORTANT
What is mutualism? Mention any two example where the organisms involved are commercially exploited in modern agriculture.
MEDIUM
12th Tamil Nadu Board
IMPORTANT
List any two adaptive features evolved in parasites enabling them to live successfully on their host?
MEDIUM
12th Tamil Nadu Board
IMPORTANT

Mention any two significant roles of predation plays in nature.