Name
Date
Class
Note-taking Plate Tectonics
Worksheet
Section 1
Cont...
Biology, 30.10.2021 17:00 cacaface311
Name
Date
Class
Note-taking Plate Tectonics
Worksheet
Section 1
Continental Drift
A. The continental drift hypothesis-continents have moved slowly to their current locations
1. All continents were once connected as one large landmass now called
Answers: 2
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
Answers: 1
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What best describes the structure of the declaration of independence?
Answers: 2
Biology, 22.06.2019 09:30
The “ecological footprint” left by a citizen of a developed nation is about four times larger than that left by a citizen of a developing nation. why is this the case?
Answers: 1
Biology, 22.06.2019 10:40
Which label identifies the part of the atp molecule that changes when energy is released in the cells of all living things
Answers: 2
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