If solution x has a 2% concentration of nacl and solution y has an 8% concentration of nacl, which of the following statements is correct?
a. solution x is hypotonic to solution y.
b. solution x has a higher osmotic pressure than solution y.
c. solution x has a lower concentration of water than solution y.
d. solution x is hypertonic to solution y.
e. solution x has a higher solute concentration than solution y.

You have been asked to lead a demonstration for the undergraduate microbiology lab course about the uses of negative staining when studying bacteria. a "negative" stain does not stain the bacterial cell itself but stains the space between cells. under magnification, the acidic (negativelycharged) nature of the stain will be repelled by the negatively charged bacterial cell wall and willleave the cell colorless in a stained background. negative stains are used primarily to reveal the presence of negatively charged bacterial capsules; therefore, they are also called capsule stains. encapsulated cells appear to have a halo surrounding them. the negative stain procedure does not require heat fixation, which limits any chances of alteration in bacterial cell shape and size. the bacterial suspension is added to a drop of stain, such as nigrosin or eosin, and drawn across the glass slide using a coverslip.nigrosin staining-not safranin staining-of klebsiella pneumoniae will allow for the visualization of the cell shape and the determination of the presence of a capsule.true/false

15 ! come and answer! a(n) is the general term for an infectious disease that has spread across a city, region, or country.

Which statement is a physical property? becomes moldy quicklyeasy to digestconducts electricity poorlydoes not burn