NEET · Biology · STD 12 - 11. organisms and populations
Choose the correct statements regarding population interactions between two species.
A. In both parasitism and commensalism, only one species benefits and the other species is harmed.
B. Both species benefit in mutualism.
C. Both species benefit in commensalism.
D. In parasitism, only one species benefits and the other species is harmed.
E. In amensalism, one species is harmed and the other is unaffected.
Choose the correct answer from the options given below :
- A B and E only
- B A and B only
- C B, D and E only
- D A and D only
Answer & Solution
Correct Answer
(C) B, D and E only
Step-by-step Solution
Detailed explanation
(C) B, D and E only
In mutualism, both species benefit from the interaction (+, +).
In commensalism, one species benefits and the other is neither harmed nor benefited (+, 0).
In parasitism, one species benefits and the other is harmed (+, -).
In amensalism, one species is harmed and the other is unaffected (-, 0).
Therefore, statements B, D, and E are correct.
In mutualism, both species benefit from the interaction (+, +).
In commensalism, one species benefits and the other is neither harmed nor benefited (+, 0).
In parasitism, one species benefits and the other is harmed (+, -).
In amensalism, one species is harmed and the other is unaffected (-, 0).
Therefore, statements B, D, and E are correct.
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