What two components are often found as part of an enzyme?

Proteins of which enzyme is composed of

Active site of enzyme

Explanation:

A biological enzyme is composed of proteins that enhance the rate of chemical and biological reactions with in a cell or organ.  

Thus, protein is one important component of enzyme.  

An enzyme attaches to only specific substrate at the active site. The compatibility of substrate and active site surface must be high enough to allow for easy attachment and further chemical reaction progression.  

the answer is c) an oak tree

an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.