The lock-and-key mechanism refers to
a: the complementary shapes of an enzyme and a substrate
b: the attractive forces between an enzyme and a substrate
c: the ability of an enzyme to lower the activation energy of a reaction
d: the ability of a enzyme to "unlock" the products of a reaction

Which of the following are causes of coastal erosion? check all that apply. beach grasses and other plants trap windblown sand. wave action carves away the coastline. groundwater under pressure is forced to earth’s surface. artificial structures stop the natural flow of sand along the coast. underground caves collapse as bedrock is dissolved.

Which statement best describes a typical difference that could be found between the “analysis” and “conclusion” sections of a lab report?

Does all the energy stored by the phytoplankton reach the top level of the pyramid