Atmosphere))))))))))))(())(()))
Enzymes are biological catalysts which speed up the speed of reaction by lowering the activation energy without itself being consumed for e.g to digest proteins there are dfrn enzymes and to digest carbohydrates there are dfrn enzymes every enzyme is specific in its function
Crossing over is important as it allows for variation in a species. Without crossing over or any other methods of providing genetic variation it would mean everyone would look the exact same.
Answer:
6 of themmmmmmmmmmmmmmmm I thinkkk
