The greenhouse effect is a result of

a. reflection of solar energy by cloud cover.
b. aerosolization of dust and gases produced by volcanoes.
c. absorption and radiation of energy in the atmosphere.
d. absorption and radiation of energy in the hydrosphere.

Which best describes this behavior? it is beneficial only to the males that do not fertilize eggs. it is beneficial only to the female workers that are not fertilized. it is beneficial to each one of the individual colony members. it is beneficial to the whole species, but not to all of the individual members.

As a result of these processes the single celled organism accomplishes

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.