Astudent viewing a cell with a microscope observes a cell wall a cell wall a cell membrane and a nucleus the presence of these structures indicates that the students is looking at a cell fram a

in chemistry, a solution’s concentration is how much of a dissolvable substance, known as a solute, is mixed with another substance, called the solvent. the standard formula is c = m/v, where c is the concentration, m is the mass of the solute dissolved, and v is the total volume

it's filtration, but this is an assumption so my apologies if i got this