They help neutralize the acids produced by the stomach.
Examples of abiotic factors are water, air, soil, sunlight, and minerals.Biotic factors are living or once-living organisms in the ecosystem.
Biotic describes a living component of an ecosystem; for example organisms, such as plants and animals.
Examples Water, light, wind, soil, humidity, minerals, gases.
<u><em>Hope this helps!</em></u>
Color and light are one of the important things and helpful
in determining concentration as they are able to show basis of whether the
concentrations you have used is correct and accurate as the original effect on
the experiment being conducted. They were able to provide differentiation of
experiments and to be able to show the differences and which are the ones who
are accurate and precise base on the given results.
I say it is all of the above.
Cyanobacteria are oxygenic photosynthetic bacteria. They harvest the sun's energy, absorb carbon dioxide, and emit oxygen. Like plants and algae, cyanobacteria contain chlorophyll and convert carbon dioxide to sugar through carbon fixation. Unlike eukaryotic plants and algae, cyanobacteria are prokaryotic organisms.