Biology, 25.02.2021 17:10, mahoganyking16
Which of the three graphs shown in Figure 17-5 might show a population of birds with members that specialize in different types of food? Explain.
Answers: 2
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, 21.06.2019 21:30, yasyyas646646
Which best explains why there are 64 possible codons in the genetic code and only 20 amino acids that make protiens of living organisms on earth
Answers: 3
Biology, 22.06.2019 05:50, clairebear65
Which of the following is not a possible effectof increasimg carbon dioxide levels in the atmosphere ?
Answers: 1
Biology, 22.06.2019 07:30, Cooldude3966
In which of the following relationships is one organism always benefited while the other organism is always harmed
Answers: 1
Which of the three graphs shown in Figure 17-5 might show a population of birds with members that sp...
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