Radiometric dating of a sedimentary rock sample shows
an age of 1.5 million years. what conclu...
Radiometric dating of a sedimentary rock sample shows
an age of 1.5 million years. what conclusions can be
drawn from this data? radiometric dating cannot be used
on sedimentary rock so no conclusions can be drawn. the
rock is a minimum of 1.5 million years old but it may be
older. the rock is exactly 1.5 million years old. the rock is
a maximum of 1.5 million years old but it may be younger.
Answers: 1
Biology, 21.06.2019 17:30
If the birth rate of a population of dolphins is 2.0, the death rate is 0.5, and the population size is 100, what is this dolphin's population growth?
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What came first egg or chicken? and is tomato a vegetable or a fruit?
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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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