Answer:
Populations have variation in traits due to random mutation, crossing over and environmental conditions.
Enzymes are biological molecules (typically proteins) that significantly speed up the rate of virtually all of the chemical reactions that take place within cells. They are vital for life and serve a wide range of important functions in the body, such as aiding in digestion and metabolism.
One of their ideas was cloning
Hope I helped! ( Smiles )
its to hard but you can answer this
