In microscopy, the term resolution
A) refers to the ability to distinguish fine structure and detail in a specimen.
B) is the same as the total magnification of a specimen.
C) is improved when longer wavelengths of light are employed.
D) is only observed in stained specimens.
E) refers to magnification when using the electron microscope.
A
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Which of the following is NOT involved in turning off the lac operon?
a. the short lifespan of mRNA molecules b. the short lifespan of the lac operon gene products c. the depletion of lactose from the cytosol d. the lack of allolactose to bind to the repressor e. binding of repressor to the operator
What type of communication is most widespread in animals that have good eyesight and are active during the day?
a. acoustical b. tactile c. chemical d. pheromones e. visual
__________ fights infection by increasing the
metabolic rate. Fill in the blank(s) with the appropriate word(s).
__________ relay signals between neurons.
Fill in the blank(s) with the appropriate word(s).