Which dispersion pattern is population sampling the most effective on? Clumped, species are more mobile than random or uniform distributed organisms.
Random, individuals are more spread out evenly.
Uniform, each square is equally representive of the entire population.
Random, each grid location is equally representative of the entire population.

It depends on the surface of the levels. the rougher the surface, the greater is the frictional force. for rougher surfaces, you would need to exert greater force to move the object. the concept is that, you must overcome the frictional force in order to bring the object into motion. this is the reason why we add lubricants to the joints so they could easily move. this answer was on