Acid fast stain is used to stain the bacteria of the genus Mycobacteria, because they contain large amounts of impermeable wax-like sbstances, which do not allow gram stain to penetrate the cells. Gram stain however, can penetrate the other bacteria with varying amounts of polysaccharides and lipopolysaccharadies in their cell walls, and thus can differentiate between them, For Acid fast stain, it would be difficult to differentiate between the gram positive and negative cells, and therefore, it is not used for this differential purpose, but to identify the Mycobacterim only.
Answer:
A I think sorry if its wrong
Electron, proton/ neutron (same size), elements and finally compounds, hope it serves you!
The answer is; B
Quaternary consumers sit at the very top of food chains and have no natural predators. An example is the eagle bird. These animals die naturally and are consumed by decomposers or scavengers. Quaternary consumers are usually few in number in their populations – this can be depicted in the tapering form of an ecosystem’s energy pyramid.
<span>The genetic code is redundant, that means same genetic code is present in multiple times, in each cell. it acts as "nature's safety net" because if we happen to lose a part of our body or genetic material, it can be regenerated using the remaining part which contains the same genetic code.</span>
