EASY
12th CBSE
IMPORTANT
Earn 100

Distinguish ectoparasites and endoparasites.

Important Questions on Organisms and Populations

HARD
12th CBSE
IMPORTANT
Why cannot a population live alone by itself in nature?
MEDIUM
12th CBSE
IMPORTANT
Egrets are often seen along with grazing cattle. How do you refer to this interaction? Give a reason for the association.
MEDIUM
12th CBSE
IMPORTANT
What is “r” in the population equation dN /dt = rN?
MEDIUM
12th CBSE
IMPORTANT
How does increase and decrease in the value of “r” affect the population size?
MEDIUM
12th CBSE
IMPORTANT
Differentiate between mutualism and competition.
MEDIUM
12th CBSE
IMPORTANT
Differentiate between commensalism and amensalism.
MEDIUM
12th CBSE
IMPORTANT
Explain why very small animals are rarely found in polar regions.
MEDIUM
12th CBSE
IMPORTANT
Construct an age pyramid which reflects a stable growth status of human population.