Choose two different types of cells and explain how they are adapted for the job they do in your body

Match the digestive enzymes to the macromolecules they to digest. break down fats into glycerol and fatty acids break down carbohydrates into simple sugars break down nucleic acids into nitrogenous bases and simple sugars break down proteins into amino acids

Environmental differences within ecosystems are generally caused by

Is there any solid scientific evidence that humans have been cloned?