Question:

The interaction between agroforestry components is said to be amensalistic if ______________________.

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Remember: Amensalism = (-, 0). Commensalism = (+, 0). They are often confused in biological sciences.
  • Both components are benefitted
  • Both components are affected
  • One component is benefitted and negligible effect on the other one.
  • One component is affected and negligible effect on the other one.
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The Correct Option is D

Solution and Explanation

Step 1: Understanding the Question:
This question deals with biological interactions between species, denoted by $(+, -, 0)$ signs representing benefit, harm, or neutrality.

Step 2: Detailed Explanation:


Amensalism is an interaction where one species is harmed or negatively affected (-), while the other species remains neutral or unaffected (0).

• In agroforestry, this might occur if a tree produces allelochemicals that inhibit a crop's growth, but the crop has no significant effect on the tree's health.

Mutualism (A): Both benefit (+,+).
- Competition (B): Both are affected negatively (-,-).
- Commensalism (C): One benefits, one is neutral (+,0).

Step 3: Final Answer:

Interaction is amensalistic if One component is affected and negligible effect on the other one.
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