"the antibody protein has two functional domains, one for antigen binding and a second to confer specific effector functions. these two functional domains are encoded by the antibody light chain and antibody heavy chain polypeptides, respectively."

its 42

i say its d?

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…