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文昌鱼的形态结构观察
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文昌鱼的形态结构观察. 一、实验目的. 通过对文昌鱼形态结构的观察，了解脊索动物门的主要特征及其与无脊椎动物的区别. 二、实验材料. 文昌鱼的整体装片 文昌鱼的过咽横切片. 三、方法与内容. （一）文昌鱼的形态结构 1 、外形（无头类） 腹褶 腹孔 奇鳍 肌节 肛门 2 、整体装片 口笠（前庭、轮器、触须、缘膜） 咽鳃裂 围鳃腔 肠 肝盲囊
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文昌鱼的形态结构观察
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