Biology, 21.05.2021 23:30, hunterbrod71
Look at this picture. Is this bird about to become this predator’s lunch? What do you think is happening in this photo?
Answers: 2
Biology, 21.06.2019 13:00, keigleyhannah30
Which of the following are energy solutions that release pollution into the air>
Answers: 1
Biology, 21.06.2019 20:00, skylex
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
Answers: 1
Biology, 22.06.2019 09:00, magicpuppydance
Which of the following types of stars are dim but can have high surface temperatures? giants main sequence stars supergiants dwarfs
Answers: 2
Look at this picture. Is this bird about to become this predator’s lunch? What do you think is happe...
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