Im pretty sure its
A. Number of Organisms
B. Amount of Matter
A million sorrys if im wrong :(
Humus is a dark organic matter that is an important part of your soil
Humus consists of decomposing organic material. The process of creating humus is called Humification: decomposition of o<span>rganic matter into smaller and smaller molecules by the micro-organisms in the soil (mostly bacteria and fungi).</span>
Answer:
Proteins are broken down by the enzymes pepsin and peptidase, and by hydrochloric acid. Lipids are broken down by lipases.
To calculate the population density, you will divide the population by the size of the area. Hope I helped!
