Consider the expression (78)−4. What is the reciprocal of the base? Write your answer as a fraction, using the / symbol, like this: 42/55

What do transitional fossils best support?

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.

Based on the number of offspring they produce at one time organisms are classified into two categories many offspring at once and a few at a time sort the carry sticks based on the category they describe