Darwin believed that organisms changed gradually over time,but Lamarck thought they changed suddenly.Lamarck believed that organisms could acquire characteristics during their lifetime that they could pass down to their offspring,but Darwin did not believe these traits could be passed down.Darwin believed that species are still changing,but Lamarck believed they had stopped.Lamarck believed that evolution occurred randomly,but Darwin thought it was the result of predetermined plan.Hope this help you!
        
             
        
        
        
Answer:
The  correct answer is chemical energy from broken bonds is transformed into mechanical energy.
Explanation:
Muscle contraction need energy in form of ATP.ATP contain 2 high energized phosphoanhydride bonds.
                   The hydrolysis of phosphoanhydride bonds releases chemical energy which is transformed into mechanical energy for helping the muscles to move.
 
        
                    
             
        
        
        
The stem has more things to transport that's why it has more vascular bundles. The roots only get water from the ground and moving nutrients from the soil to transfer it to the stem. Having more vascular bundles helps the stems to transfer things to leaves and other parts of the plants.