2) An enzyme in saliva called amylase will work on starch but not on proteins. This action shows that amylase
(A) contains starch
(B) is chemically specific
(C) is not reusable
(D) lacks proteins

Ryan rears sheep for their wool. recently the quantity of wool that ryan gets has diminished. this is because the new sheep are not that wooly. ryan should add which nutrient to their feed so that the sheep becomes more wooly? a. cornb. ironc. cottonseedd. vitamin a

How can you approximate the number of calories required to keep you in energy balance?

Connection compare and contrast genetic engineering to the process of natural selection. select all statements that are true.