HJS对辣椒上烟青虫卵的寄生选择系数较高，而烟青虫偏好产卵于烟草。
As to different host plants, HJS strain preferred to oviposit in the host eggs on pepper, but tobacco budworm preferred to oviposit on tobacco.
因此，自然选择让这种寄主-寄生关系变得稳定。
Thus, natural selection stabilized this host-parasite relationship.
自然选择偏爱那些最容易找到寄主并以之为食的寄生虫。
Natural selection favors the parasites that are best able to find and feed on hosts.
应用推荐