Astudent is performing a gram stain of a mixed culture of both e. coli and s. aureus and he forgets to decolorize with ethanol. what should his slide look like? a. both are colorless because the ethanol is needed for the cells to absorb the stains b. the e. coli should appear red/pink and the s aureus should appear blue/purple. c. both the e. coliand the s. aureus should appear blue/purple. d. both the e. coliand the s. aureus should appear red/pink.
Answers: 3
Biology, 21.06.2019 20:00
Read the following scenario to answer the following question. over the past 60 years, many amphibian species have experienced significant population declines, and some species have become extinct. scientists suspected that local human activities such as the destruction of wetlands, regional pollution, and deforestation were the main reasons for these losses. however, research over the past 20 years reveals significant amphibian population declines in protected areas of the world, such as nature preserves and parks. these global declines suggest widespread problems including increased ultraviolet radiation, acid rain, and disease. in switzerland, for example, 14 of the 20 native amphibian species are threatened with extinction. when most populations of a wide-ranging amphibian species are lost and the few remaining populations are widely separated, we expect to see that a. the founder effect becomes increasingly important b. microevolution no longer occurs c. gene flow between populations is reduced d. artificial selection becomes a greater factor in microevolution
Answers: 2
Biology, 22.06.2019 08:30
Which macromolecule catalyzes chemical reactions this be considered enzyme chemical reactions thus he considering enzymes
Answers: 1
Biology, 22.06.2019 10:50
Which type of transport is responsible for oxygen entering into blood cells? a. vesicle b.passive c. facilitated d.active b.passive
Answers: 2
Astudent is performing a gram stain of a mixed culture of both e. coli and s. aureus and he forgets...
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