The Zero Home Page. 1  In our paychecks, zeros are critical. 2  We all like to see lots of zeros lined up on a check. 3  Speaking of lines, there would be a big hole in the number line if there was no zero, you could fall through and get hurt.
[Continued from above] . . . Unlike the rest of the large intestine, however, the submucosa of the appendix contains many masses of lymphoid tissue. The presence of lymphoid tissue suggests that the appendix may play a role in the immune system in addition to the digestive system. What Does the Appendix Do? The appendix is not a vital organ and medical researchers still debate its exact function in our bodies. One hypothesis suggests that it is a vestigial remnant of a once larger cecum. This larger cecum would have been used by vegetarian ancestors to digest cellulose from plants.
The digestive system works with the excretory system. the digestive system helps get the waste products for the excretory system and the digestive system breaks down food to nutrients for the cardiovascular system to transport the nutrients to the cells in the body With circulation because the bloâ¦.