Allosteric effectors: A) can cause large changes in enzymatic activity. B) can lead to a decrease in the availability of a protein. C) do not alter the sensitivity of a metabolic pathway. D) decrease the sensitivity of the enzyme at nearly all concentrations of substrate. E) alter enzyme activity by binding to the active site of an enzyme.

Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils