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2.反刍动物的胃具有密度很高的细菌，这些细菌与反刍动物之间的关系是 【 】
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A、寄生
B、捕食
C、共生
D、附生
答案是:C
解析：【考情点拨】本题考查了共生关系。
【应试指导】共生是指两种不同生物之间所形成的紧密互利关系。动物、植物、菌类以及三者中任意两者之间 都存在“共生”。
出自
成人高考 > 生态学基础 >
2020年成人高考专升本《生态学基础》真题试卷与答案
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