Atether ball is tied to a string and whirled in a horizontal circular path at a constant speed. what causes the ball and string to move away from the post? a person pushing the ball creates the initial force that sets the ball in motion. the tension in the string is the centripetal force that maintains the circular motion and acts along the string away from the ball. the tendency for the ball and string to move outward away from the post is inertia.

Compare and contrast the adaptations of free-living flatworms and parasitic flatworms

What is it called when plants lose water though their leaves

Examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. polyploidy is creating new species. the two populations are not interbreeding freely. hybrid offspring of the two populations begin to appear. one species will increase into a population size twice as large as the other species.