Question

Select the INCORRECT pair from the following:

• A. Mutualism - Both species are benefited
• B. Commensalism - One species benefited and other is neither benefited nor harmed
• C. Parasitism - Interaction is detrimental to parasite
• D. Competition - Both species are harmed

Hint:

In parasitism the host is harmed and the parasite benefits.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept
Interactions between populations are shown as benefit (+), harm (-) or no effect (0).

Step 2: Check each pair
Mutualism is (+, +), so both species benefit.
Commensalism is (+, 0), so one benefits and the other is unaffected.
Competition is (-, -), so both species are harmed.

Step 3: Find the wrong pair
In parasitism (+, -) the parasite benefits and the host is harmed. So 'detrimental to parasite' is wrong and option (C) is incorrect.

Final Answer:
Parasitism - interaction detrimental to parasite is the incorrect pair. \[ \boxed{\text{(C) }\text{Parasitism - Interaction is detrimental to parasite}} \]