Acid-fast rods present in sputum typically indicates a mycobacterial infection. Mycobacteria is a type of germ, and it can manifest in different diseases, the most common is Tuberculosis. Acid-fast is namely due to the bacteria's stain retention to the staining procedure after an acid wash.
Animals cells are found inside the animals body. We have no exact place where it is found ;)
1 H2SO4 + 2 NaNO2 ---> 2 HNO2 + 1 Na2SO4
Food webs with fewer species are more sensitive to the loss of species and ecosystem disturbances
"It converts the inactive enzyme pepsinogen into the active enzyme pepsin, which is responsible for digesting proteins in your stomach. HCL also helps digest other foods in your stomach. Ultimately, HCL is neutralized by chemicals secreted in your small intestine."
But, use your own words, though. Because I just hit copy & paste. Hope this helps!