Choose the right matches in the following pairs : (1) Commensalism - One population benefits but second one is neither benefited nor affected. (2) Mutualism - Two populations living together but neither affects nor benefits. (3) Amensalism - One population prey on another at all times. (4) Competition - Populations are not affecting directly but fight for resources.
(1) and (4) are correct
Population interactions are classified by their effect on each species: commensalism (+, 0), mutualism (+, +), amensalism (-, 0), predation (+, -) and competition (-, -).
Pair (1) is right: in commensalism one population benefits while the other is neither benefited nor harmed. Pair (4) is acceptable: in competition populations need not act on each other directly, but they struggle for the same limited resources.
Pair (2) is wrong because in mutualism both populations benefit. Pair (3) is wrong because one population preying on another is predation; in amensalism one species is harmed while the other is unaffected.
So only pairs (1) and (4) are correctly matched.
Hence, (1) and (4) are correct.
Important Questions from Ecology and Functions of an ecosystem
The phosphorus cycle is unusual because it is entirely:
Which of the following constitute a food chain ?
In the nature, which of the following is/are most likely to be found surviving on a surface without soil?
1. Fern
2. Lichen
3. Moss
4. Mushroom
Select the correct answer using the code given below.
What is blue carbon?
Which of the following have species that can establish symbiotic relationship with other organisms?
1. Cnidarians
2. Fungi
3. Protozoa
Select the correct answer using the code given below.
