Why do the finches of the galápagos islands have different beaks

The friction red blood cells encounter when moving past each other. cardiac output: the amount of friction blood encounters during flow through blood vessels. blood pressure: the force of the blood against the vessel wall. blood viscosity: the volume of blood pumped out by one ventricle each minute.

In which case would a scientist choose to use a dissecting microscope rather than a compound microscope

2polnis which of the following is an advantage of an in vitro experiment?me