| Commensalism | Mutualism |
| $(1)$ One species is benefited,while the other remains unaffected. | $(1)$ Both species are mutually benefited. |
| $(2)$ $(+, 0)$ interaction. | $(2)$ $(+, +)$ interaction. |
| $(3)$ Example: Epiphytes on a host plant,clownfish and sea anemone. | $(3)$ Example: Rhizobium-legume association,mycorrhiza. |
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| Species $A$ | Species $B$ | Type of Interaction | Example |
|---|---|---|---|
| $+$ | $-$ | $(a)$ | $(b)$ |
| $+$ | $+$ | $(c)$ | $(d)$ |
| $+$ | $(e)$ | Commensalism | $(f)$ |
| Interaction Type | Sign | Description |
|---|---|---|
| $(a)$ Parasitism | $(i) -, 0$ | $(A)$ Both get benefitted |
| $(b)$ Amensalism | $(ii) -, -$ | $(B)$ One gets harmed,other has no effect |
| $(c)$ Competition | $(iii) +, -$ | $(C)$ Both get harmed |
| $(d)$ Mutualism | $(iv) +, +$ | $(D)$ One is harmed and second is benefited |
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