Select the best answer for the question. 14. Which feature is believed to have been the first step in the evolution of land pla
A. Evolution of vascular tissue
B. Protection of the embryo
C. Evolution of microphylls
© D. Evolution of flowers to attract pollinators
Mark for review (Will be highlighted on the review page)
a
N
W

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

Yes yes yes very good