External observations of earth Worm essays

External observations of earth Worm essays The texture of the surface is slimy and wet and the color of the worm was brown. It was in the shape of a cylinderand the size of the worm is 27 1/2 cm. We measured three other things as well 1.clitellum and it was 1 cm long 2. the width of the worm and it was .6 cm is width 3. was the lenght of one of the segments on the worm and it was 2 mm. We also counted the all the segments on the worm and the total number of segments was143. Another word for a segment is a somite. On each segment their are a pair of setea which are located on the ventral side of the worm. The texture of the worms setea was rough, firm, and prickley. next we located the mouth and we came to the conclusion that their are no bones in the mouth. The worm crushes or eats its food by using its gizzard to crush the food. Which broight me to the next question which is what do worms eat and they eat soil and organic material. The mouth is on the anterior end of the worm and the anus is located on the posterior en d of the worm. Liquid wastes are filteres out using the nifridia then the filtered wastes exit using the anus. Then we had to find the clitellum and describe what it looked like and it is a cylinder that is larger then rest of the worm and the clitellum also dosent have and segments on it like the rest of the worm does. The clitellum is locatec 37 segments back from the anterior end of the worm. The clitellum is has key role in the reproduction of earthworms. The clitellum is where the mucus which is holdening the frtilized eggs is secreated and the clitellum is where the sex cells are located. The anus is located 105 segments behind the clitellum. The next thing was to find out about the gential pore and they are the pores in which the eggs and sperm are exchanged and yes you can see the genital pores. I also observed that the worm kept tryingfind a moist spot on our tray and when he did he just covered himself in ...