Which of the following would be an advantage of using a light microscope instead of an electron microscope?
a. Light microscopes, because they use light, offer greater resolution than electron microscopes.
b. Light microscopes are designed to offer more magnification than electron microscopes.
c. Living cells can be examined with a light microscope. The method of preparing cells for an electron microscope kills the cells.
d. With a light microscope, both the surface characteristics and the internal characteristics of a cell can be examined and no special stains are required.
c. Living cells can be examined with a light microscope. The method of preparing cells for an electron microscope kills the cells.
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What activity is likely to cause the intermediate filaments that make up the nuclear lamina to reassemble after mitosis has ended?
a) acetylation b) methylation c) phosphorylation d) dephosphorylation
A neutral solution
A) is hydrophobic. B) has a pH of 0. C) has no H+. D) has no OH-. E) has equal amounts of H+ and OH-.
A population of grasshoppers in the Kansas prairie has two color phenotypes, green and brown. Typically the prairie receives adequate water to maintain healthy green grass. Assume a bird that eats grasshoppers moves into the prairie. How will this affect
the natural selection of grasshoppers? How might this change in a drought year? What will be an ideal response?
Match the microscope part with it's function.
Fine focus A) Focus light onto the specimen B) Control the amount of light reaching the specimen C) Brings the specimen into general focus D) Increases the detail of the image