In 2013, the Jiangsu Compulsory Biological Compulsory III, Chapter 4, Section 2 (2) Zhineng exercise won the championship lightly 1. Information transmission is one of the important functions of the ecosystem. In the following phenomena, related to the transmission of physical information is () Floral scented butterfly B. C. Porcupine meets the enemy and erects body sting C. Migratory birds flying south Police dog sniffing drugs analysis: choose C. This question examines the judgment of the type of information. The floral fragrance of item A attracts butterflies because the chemicals released by the flowers attract butterflies; police dogs sniffing drugs are not information transmission of the ecosystem; porcupine stabs when they meet the enemy, which is behavior information; Physical information such as temperature changes. 2. Information transmission has many applications in agricultural production. The following statements are incorrect (multiple choices) () A. Improve the quality of agricultural products B. Increase the output of livestock products C. Control harmful animals D. Analysis to improve the reproduction ability of agricultural pests: choose AD. The application of information transmission in agricultural production has two aspects: one is to increase the output of agricultural products and livestock products, and the other is to control harmful animals.
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