Elementary studies in insect life Elementary studies in insect life elementarystudie00hunt Year: 1902 FORM AND FUNCTION 269 %%%%%%%%%%%%%%%% I )' / FIG. 207. Side view, showing spir- acle of mesothorax with spiracle en- larged. This is one of the openings of the respiratory system. It is called a spiracle. Ex- • ;ii i line the body of the liv- ing grasshopper and locate, if you can, other spiracles. INTERNAL DIVISIONS OF THE BODY. The grasshopper, agreeing with higher forms of life, has a digestive, circulatory, reproductive, respiratory, excretory and nervous system. With the facilities a
Elementary studies in insect life Elementary studies in insect life elementarystudie00hunt Year: 1902 FORM AND FUNCTION 269 %%%%%%%%%%%%%%%% I )' / FIG. 207. Side view, showing spir- acle of mesothorax with spiracle en- larged. This is one of the openings of the respiratory system. It is called a spiracle. Ex- • ;ii i line the body of the liv- ing grasshopper and locate, if you can, other spiracles. INTERNAL DIVISIONS OF THE BODY. The grasshopper, agreeing with higher forms of life, has a digestive, circulatory, reproductive, respiratory, excretory and nervous system. With the facilities at hand we shall not be able to study all of these thor- oughly. However, by means of the dissecting-stand, lens, and with the addition of a pair of needles, we can obtain some interesting facts. DIGESTIVE TRACT. Take a freshly killed specimen, clip off the wings, pin the body down by the legs to a sheet of cork or thin piece of some soft wood, and with a sharp-pointed pair
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