Bacterial cell walls are made of peptidoglycan (also called murein), which is made from polysaccharide chains cross-linked by unusual peptides containing D-amino acids. ... Gram-positive bacteria possess a thick cell wall containing many layers of peptidoglycan and teichoic acids.
<span>They can see what function a certain part of the brain may have because of an injury or disorder. Some scientists in the old days sent electrical currents to see what happened of one part of the brain was activated.</span>
i believe the answer is B, Salt accumulates near the surface of the soil.
frogs,toads,snakes,lizards
