The folds in the stomach lining are called rugae. On these rugae, you will find a thin line of mucous which helps protect the stomach lining. The innermost layer is called Simple Columnar Epithelium.
<span>Meristem cells divide and some of the new cells differentiate into xylem and phloem. </span>
Answer: Producers
Explanation: Producers are autotroph, which means they make their own food, like plants.