The active site of an enzyme is the region that

a) binds allosteric regulators of the enzyme
b) is involved in the catalytic reaction of the enzyme
c) binds noncompetitive inhibitors of the enzyme
d) is inhibited by the presence of a coenzyme or a cofactor

The table shows dates and appearance of index fossils. which rock layers can be dated most precisely? a) a layer containing both a fossil 4 and a fossil 3 b) a layer containing both a fossil 2 and a fossil 3 c) a layer containing both a fossil 1 and a fossil 4 d) a layer containing both a fossil 1 and a fossil 2

Mineral rich water heated by newly found oceanic crust escapes through cracks in the ocean floor called

Which of the following forest management practices is best for reestablishing areas of forest?