Identify the incorrect statement below concerning chemical kinetics: question 1 options: a) the rate law expresses how the rate varies with concentration of species. b) the rate of a chemical reaction is affected by the temperature of the reaction. c) the rate of a chemical reaction changes with time. d) the rate constant of a reaction changes when the reactant concentrations change. e) the rate law of a chemical reaction bears no relationship with the balancing coefficients of the overall reaction.

Which supports the idea that birds and butterflies both have wings but they do not have a common ancestor with wings? a. the wings are analogous structures that evolved differently and do not have a similar internal structure. b. the wings are homologous structures that evolved differently and do not have a similar internal structure. c. wings of birds are vestigial structures, but the wing structures of bats are not vestigial. d. wings of bats are vestigial structures, but the wing structures of birds are not vestigial

The excretory system,need answers for all: )

At element makes up all organic compounds?