Can someone explain the 4th dimension to me the best you can?

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

Which statement correctly describes a way that mutations increase the likelihood that a species will survive in a changing environment

All eukaryotic cells contain small bodies called