Compare and Contrast Look at the graph in Figure 7-12. Compare the lab results of the single lab group with those collected by the rest of the class.

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

If the gene for the trait is carried on an x or y chromosome it's a "sex-linked" trait.hope my answer has you : )

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