1
The relationship between organisms in which one species is harmed by the presence of the other but the other species
remain unaffected is termed as
EXPLANATION
Ecological Interactions & Ecosystem Energetic
- Interspecific Ecological Interactions:
- Amensalism ($-/0$): A biological interaction between two species in which one species is harmed, inhibited, or killed, while the other species remains completely unaffected and derives no benefit or harm.
- Classic aquatic examples include:
- Dense blue-green algal blooms (Microcystis) releasing cyanotoxins (microcystins) that poison zooplankton and fish while the algae are unaffected.
- Black walnut trees releasing juglone, or Penicillium molds secreting penicillin.
- Commensalism is $+/0$; Mutualism is $+/+$; Predation is $+/-$.
- Correct Option: Option 4 (Amensalism).
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