The digestive system contains all four major tissue types, epithelial<span>, connective, muscle and nervous. e</span>pithelial<span> tissue lines the entire length the digestive tract. it is made up of many different types of cells, including goblet cells that secrete mucus.</span>
Answer:
Explanation:
Look I would help but I'm not learning that stuff yet in Middle School.
B. some substances must be dissolved in water before they can be used
Answer:
d is the answer for this question
