What is true of a catalyst? a. it is not consumed by the reaction. b. it is a product of a chemical reaction. c. it is a reactant in a chemical reaction. d. it provides the energy needed for the reaction.

What characteristic does giardia have that makes it a protist, a characteristic that all other protists have? a. it is a unicellular eukaryote. b. it is a eukaryote that is not an animal, a plant, or a fungus. c. it is parasitic and has flagella. d. it spends part of its time in a body of water.