How do scientists use the differences in proteins compare Evolutionary Relationships between organisms?

the correct answer is: d. the saltine and pretzel are made of flour, yeast, and baking soda, and salt. the pecan contains no flour but it does contain fats. the pecan is a nut that can be consumed as a healthy snack. first of all, pecans are a source of fat (monounsaturated fat), but they provide less fat than some other nuts. pecans are a rich source of dietary fiber, manganese magnesium, phosphorus, thiamin, vitamin e…

answer; ///(b) it is composed of four protein chains and four heme groups;

not sure if this is what you'r looking for nnew= nold