Select the correct answer from each drop-down menu.
complete the sentences about earth’s early biosphere.
1st dropdown:
a. combustion
b. oxidation
c. respiration
2nd dropdown:
a. organisms
b. carbon dioxide
c. sunlight

which of the following would be used to control mice and rats?

this protocol provides a detailed procedure for total protein extraction for western blot analysis from achieved samples following trizol isolation of rna.

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.