初中一年级《生物》上册对“寄生”一词的解释是这样的 :“寄生———从活的动植物体内吸取有机物来生活”。那么 ,寄生植物是否自己能制造有机物而营自养生活呢 ?除了能从活的植物体内吸取有机物外 ,是否还能从活的植物体内吸收水和无机盐呢 ?寄生现象是怎样产生的呢 ?哪些类 The interpretation of the word “parasitism” in the first grade of the junior high school “Biology” is: “parasitic—to draw organic matter from living plants and animals to live”. So, does the parasitic plant make its own organic matter to camp for its own life? Apart from absorbing organic matter from living plants, can it absorb water and inorganic salts from living plants? How does the parasitic phenomenon occur? Which classes