Biology, 20.07.2019 21:00 damientran
Will give brainliest! which of the following would have resulted from the resulted from the functions of prokaryotes on early earth a. more nitrogen gas became present in the atmosphere b. less sulfur became present in earth's soil c. move carbon became present in earth's soil d. more oxygen gas became present in the atmosphere
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 00:00, luzinaustin
How many species of living things are alive on earth today? more than 1,000,000 none of these answers are correct 100-500 1,000 –500,000 o 500,000 -1,000,000
Answers: 1
Biology, 22.06.2019 08:20, lizbethreyes5725
Which characteristics are typical of a human population in the postindustrial stage?
Answers: 3
Will give brainliest! which of the following would have resulted from the resulted from the functio...
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