The main function of the human digestive system is to A. rid the body of cellular waste materials B. process organic molecules so they can enter cells C. break down glucose in order to release energy D. change amino acids into proteins and carbohydrates

Human Digestive System is a complex system made up of organs, tissues, and hormones. The primary function of the human digestive system is to break down and process food into nutrient molecules.

The correct answer is:

Option B. process organic molecules so they can enter cells

The functions of the human digestive system are:

Thus, the digestive system process the food and break it down into simpler forms, so it can be absorbed by the cells.

To know more about the human digestive system, refer to the following link:

link

Hi there your answer is B

Explanation:

There are a lot of functions to the digestive system like absorbing nutrients, get rid of waste but the main function is to process organic molecules so they can enter cells.

Hope this helped :)

one would be wind another would be water density

step 1 ammonium can be absorbed by plants, but some is converted into nitrates which are better for plants to absorb. this is called nitrification. 2. step 2 the deer eats the plants and uses the nitrogen-containing proteins for cell growth. 3. step 3 bacteria in the soil conduct nitrogen fixation to convert nitrogen gas from the atmosphere into ammonium. 4. step 4 some of the nitrates are absorbed back into plants, but denitrification breaks down the nitrates into nitrogen gas released back into the atmosphere. 5. step 5 nitrogen is found in the urine, which gets broken down into ammonium through the process of ammonification. 6. step 6 plants absorb the ammonium and begin assimilation, the process to add the nitrogen to protein.