Question:
The symbiosis in which one organism is inhibited by the other but the latter remains unaffected and is called _____________.
The symbiosis in which one organism is inhibited by the other but the latter remains unaffected and is called _____________.
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Think of Amensalism as $[-, 0]$ (harm, neutral). Allelopathic interactions in agroforestry (such as Eucalyptus leaf litter inhibiting understory crops) are classic examples of amensalism.
Updated On: Jul 21, 2026
- Naturalism
- Mutualism
- Parasitism
- Amensalism
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept:
Interactions between species in a forest ecosystem can be positive, negative, or neutral for each participant.
Step 2: Detailed Explanation:
Let us classify the types of biological interactions:
- Amensalism: This is an interaction where one species is harmed or inhibited, while the other species remains completely unaffected (represented as a [$-$, 0] relationship). A classic example in forestry is allelopathy, where certain trees like black walnut (Juglans nigra) release chemical toxins into the soil that inhibit the growth of surrounding vegetation, while the walnut tree itself is unaffected.
- Mutualism: An interaction where both species benefit ($[+, +]$ interaction, such as mycorrhizae and tree roots).
- Parasitism: An interaction where one species (parasite) benefits at the physiological expense of the other (host), representing a $[+, -]$ relationship.
- Naturalism: This is not a standard scientific term used to describe species interactions.
Therefore, amensalism is the correct term for the interaction where one species is inhibited and the other is unaffected.
Step 3: Final Answer:
The symbiosis where one organism is inhibited and the other remains unaffected is Amensalism.
Interactions between species in a forest ecosystem can be positive, negative, or neutral for each participant.
Step 2: Detailed Explanation:
Let us classify the types of biological interactions:
- Amensalism: This is an interaction where one species is harmed or inhibited, while the other species remains completely unaffected (represented as a [$-$, 0] relationship). A classic example in forestry is allelopathy, where certain trees like black walnut (Juglans nigra) release chemical toxins into the soil that inhibit the growth of surrounding vegetation, while the walnut tree itself is unaffected.
- Mutualism: An interaction where both species benefit ($[+, +]$ interaction, such as mycorrhizae and tree roots).
- Parasitism: An interaction where one species (parasite) benefits at the physiological expense of the other (host), representing a $[+, -]$ relationship.
- Naturalism: This is not a standard scientific term used to describe species interactions.
Therefore, amensalism is the correct term for the interaction where one species is inhibited and the other is unaffected.
Step 3: Final Answer:
The symbiosis where one organism is inhibited and the other remains unaffected is Amensalism.
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