The function of enzymes in plants is: to help break down starch into simple glucose
to combine glucose into a large starch molecule
to help manufacture protein
to help make vitamins in plants

1) what three conditions must be present for minerals to form through natural processes? 2) why are minerals considered inorganic substances? 3) how do oxides differ from other minerals that contain oxygen atoms? 4) how is a sulfide different from a sulfate? what makes native elements unique?

Glycogen is an energy-storage molecule in humans. a hormone that is called insulin controls the storage of glycogen in the liver. insulin is made up of amino acids.

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above