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1选题目的通过对棉大卷叶螟［Sylleptederogata（Fabricius）］的幼虫和蛹两个虫态的定性、定员采集及室内饲养，观察寄生性天敌的种类和寄生率，使学生了解自然界中生物之间互相依存和互相制约的关系，以及这种关系对保持生态平衡的重要性。此项活动既可激发学生学习动物学知?
1 Subject Selection Objective To investigate the species and parasitism of parasitic natural enemies by observing the qualities of larvae and pupae of the Sylleptederogata (Fabricius) Interdependence and mutual restraint, and the importance of such a relationship to maintaining an ecological balance. This activity can stimulate students to learn animal learning?