TPO17 SYMBIOTIC RELATIONSHIP - 英檢

想請問一下厲害的大家

TPO17 SYMBIOTIC RELATIONSHIP

最後一大題的選項
1. Parasitic relationships involve the interplay of aggression by the
parasite and resistance and adaptation by the host.
2. Mutualism ordinarily involves an interaction between two members of the
same species.
3. Mutualism is unique among symbiotic relationships in that it r benefits
both partners involved in the relationship.
4. Parasitic damage to Australian rabbits was never reversed because the
rabbits were unable to adapt to the parasites' attacks.
5. The rarity of commensal relationships stems from the difficulty of finding
relationships that benefit one species without affecting the other.
6. The structure of biological communities depends on the types of
relationshipsthat exist among the species within.

其實我也決定既然挑3個重點那應該就是parasitism, commensalism,和 mutualism各一

但為何地6個選項會錯誤呀請大家題點一下

感謝:))

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