15. The involuntary wave of muscle contractions is called a. peristalsis b. absorption c fusion d. elimination 16. A tiny finger like structures that line the small intestine? a. chime b. villi c. fimbriae d. epiglottis 17. It closes your larynx to avoid you from chocking a. alveoli b. epiglottis c. voice box d. pharynx 18. Which part of the digestive system is a large J-shaped organ at the end of the esophagus? a. stomach b. enzyme c. chime d. mouth 19. What is the way out of sweat in our body? a. pores b. liver c. lungs d. pancreas 20. What happens when the digested food reached the large intestine? a. absorption of nutrients takes place c. elimination of food wastes takes place b. absorption of water happens. d. All of the above 21. We taste the food that we eat because of the a. protein b. amino acids c. enzyme d. keratin 22. Which of the following system of the body is best paired with its functions? a. nervous-senses c. digestive-covering a. excretory-eliminates d. Musculo-skeletal-support and sha 23. In which part does the starch partially breaks into sugar molecules? a. mouth b. esophagus c. stomach d. intestines 24. Which system is responsible in the process of breaking down food into a. digestive b. respiratory c. circulatory d. absorption 25. These are the tiny sacs of the lung tissue specialized for the moveme netween air and blood. b. alveoli c. pleura d. skin a. cilia​