Briefly explain the significance of mendel's technique of removing the stamen from one plant and brushing pollen from another plant on the remaining carpel

Once Mendel had established true-breeding pea plants with different traits for one or more features of interest he began to investigate how the traits were inherited by doing a series of crosses.
To do that he removed the stamen from one plant and brushing pollen from another plant on the remaining carpel, that way he could control the mating of his plants.

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