An electric current is a constant flow of electric charges along a path. What are some advantages of using electric current instead of individual charges to
discuss the movement of charges? Relate your explanation to another situation
where discussing rates of movement would be more useful than discussing the
movement of individual items

the concept of nucleosome occupancy, which reflects the fraction of cells from the population in which a given region of dna is occupied by a histone octamer

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.

condenser is used to focus in the light microscope.