Homeostasis is illustrated in the human body by the effects of insulin on the amount of

Awater molecule is polar because there is an uneven distribution of these between the oxygen and hydrogen atoms.

What are examples of the plant life and animal life that can be found in each type of terrarium

Lactase is essential for digesting lactose in milk. this enzyme is specific for this sugar. why? molecules and active sites vary in size; only properly sized molecules can fit. there is a precise compatibility between the active site and the lactose molecule. specificity refers to the action of the enzyme, such as hydrolysis, and relatively few molecules can be hydrolyzed. reaction-specific enzymes assume a fit by folding around the most numerous substrate molecules.