How do autotrophs get their food?

i'm making up some old school work and i really need this. and you

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 of the following is the main purpose of a human community?

Which animal group is the largest and contains more species from all the other living groups combined? is it mammals or