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自制动物标本不仅能加强课堂教学,而且使生物标本室更加丰富多彩。用试管可以制作以下几例。类型的动物标本。 1、活体标本 课前根据教学需要采集足量的活体小动物,从中挑选健全活泼的个体装入试管内,用泡沫包装材料做成的带孔的圆塞塞好。寨子要略陷入试管内、以免学生用手抓出。将试管标本插在用试管架改制成的标本架上.以便携带和摆放、这种标本主要供课堂发给学生学习某些动物体形态特征时用。(见图)
Homemade animal specimens not only enhance classroom teaching, but also make the biological specimen room more colorful. Use the test tube to make the following examples. Types of animal specimens. 1. Living specimens According to teaching needs, a sufficient number of living small animals should be collected before classes, from which healthy individuals should be selected and put into test tubes, and a round plug with holes made of foam packaging material should be well-prepared. The stockade should be slightly in the test tube to prevent students from grabbing it by hand. The test tube specimen is inserted on a specimen rack modified from a test tube rack for carrying and placing, and the specimen is mainly used for sending students to learn the morphological characteristics of certain animals. (See photo)