What is a benefit of the development of the cell
theory?
A. Cells have made microscopes get
better.
B. There are less biologists today
C. There is more disease on Earth now.
D. Scientists now know much more
about cells and bacteria which is a
benefit to all humans

D

Explanation:

D because scientists study cells to know how to help people when they are sick

hope this helps (it might be wrong)

Cell theory - This is crucial for us understanding biology because cells form the basis of all life. We can have unicellular organisms, like bacteria, like yeasts. [And] cell division, the division of a cell from one, to two, to four, forms the basis of growth and development of all living things.

Option D is correct answer...

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.