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挖几条蚯蚓,把它们从中间切为两段,待伤口止血后,用圆头镊子轻轻夹起放进垫有白纱布的木盒里,盒子大小五厘米左右,底部铺上四——五层纱布,纱布要提前洒些水,使之湿润。最后把这些木盒放在阴凉处,盖上硬纸板,每个木盒编上号码,以便观察。一般一周内不必观察,因这时的蚯蚓不吃不动,只要保持纱布的湿度、温度没有大的变化就行了。 一周后,用镊子把木盒里的纱布轻轻分层揭开,会发现蚯蚓伤口处长出了小肉瘤。(当然也有死去的,应分析一下原因,之后每隔两天观察一次,会发现小肉瘤开始变长,两三天能长出一节,而且,明显看得出和身体其他的环节一样。两个多星期后,蚯蚓即恢复原来的样子,只是切断处能明显看出有一个
Dig a few earthworms, cut them into two sections from the middle until the wound to stop bleeding, gently tuck with round tweezers into the wooden pad with white gauze box, the box about five centimeters in size, the bottom of the shop four - Five layers of gauze, gauze to sprinkle some water in advance to make it moist. Finally put these wooden boxes in the shade, covered with cardboard, each wooden box numbered, in order to observe. Generally do not have to observe the week, because earthworms can not eat at this time, as long as the maintenance of gauze humidity, no major changes in temperature on the line. A week later, using tweezers to gently delaminate the gauze in the wooden box, a small sarcoma grew out of the wound at the earthworm. (Of course, there are dead, should analyze the reason, then observed every two days, you will find sarcoma began to lengthen, two or three days to grow a section, and, obviously, and the rest of the body the same. After more than a week, the earthworm is restored to its original appearance, but it is obvious that there is a