Biology, 11.08.2021 15:10 CrunchyBreadstick
Why do oxygen levels drop sharply during eutrophication?
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Biology, 21.06.2019 20:00
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
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Biology, 22.06.2019 00:10
The production of cells during mitosis into specialized function is recombination or differentiation
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Biology, 22.06.2019 03:00
20 points and brainlist 1. london has suffered from terrible air pollution for at least seven centuries. why is the city so prone to its famous βlondon fog? β what did london do to get rid of its air pollution? 2. why does air pollution cause problems in developing nations more than in developed ones?
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Biology, 22.06.2019 09:30
Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?
Answers: 2
Why do oxygen levels drop sharply during eutrophication?...
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