Why does prolonged exposure to UV light from the sun or tanning beds increase the risk for getting skin cancer? increased exposure to UV light decreases the risk of a mutation occurring increased exposure to UV light increases the risk of a mutation occurring increased exposure to UV light decreases the immune system function increased exposure to UV light has no effect on the risk for getting skin cancer

Will give ! ! widentify the advantages and disadvantages of renewable and nonrenewable energy resources.

To confirm when to exclude children from school it’s recommended that you refer to guidelines from which of the following organizations

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.