When you throw a ball the motion of the ball is an example of
chemical energy
nuclear energy
mechanical energy

How does photosynthesis show the conservation of mass and energy?

What organic substance cuts dna into different sized fragments?

Which of the following structural adaptations an organism obtain food? a. dandelion seeds that can float in the wind b. the bright-colored skin of a poison dart frog c. the long neck of a giraffe d. the cardinal's bright red coloring