Animals plants, fungi and protists are eukaryote.  All multicellular organism are  eukaryote. Eukaryotes may also be single-celled.
Answer from: Quest
the binding of the substrate is dictated by the shape of each molecule. side chains on the enzyme interact with the substrate in a specific way, resulting in the making and breaking of bonds.
Answer from: Quest
it would be the percentage of food eaten by the flock