How can a tree have zones

According to this food web which of the following would be considered primary consumers

Monomers are the building blocks of larger molecules, called polymers. for example, proteins are composed of chains of amino acids that are linked together. cellulose is a polymer that makes up plant cell walls. cellulose is made from a chain of c6h10o5 molecules. which monomers are most likely used to produce cellulose? why?

Which of th following best describes how genes produce traits in an organism?