What does the term multiple alleles mean

Look at the photo of the leaf. which term best describes this leaf?

You are studying a protein that you call protein x. there is an aspartic acid at a key position in protein x which is important in the folding and stabilization of that protein. if this aspartic acid is changed to a different amino acid, which type of amino acid substitutions is most likely to allow the protein to fold normally?

When you exhale, air in you lungs moves from the does anyone know the correct answer on apex