In what ways are cellulose and starch similar

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

Melting glaciers is a serious threat to the environment what is the possible consequence of melting glaciers on polar bears?

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen