A Piece of Meat and a Piece of Fruit Are

Multiple Choice

A piece of meat and a piece of fruit are fed to both a lizard and a person.The extent to which these foods are digested by digestive enzymes along these two gastrointestinal tracts varies.Which of the following is not a reason for the variation in digestion?

A) pH of the digestive organs
B) body temperature
C) variation in enzymes produced
D) the amount of protein in the meat and fruit
E) bacteria present in the digestive tract