How do i figure this out? What are they? How can i solve it?

Plzz i need help

step-by-step explanation:

whole numbers, zero or greater

the role of the microscope world in creating new materials .

let that person have a turn to speak : )

chemical digestion occurs in the stomach were hcl and pepsin forms chyme, the mouth in which salivary amylase breaks down starch to form bolus, and the small intestine specifically the duodenum.