Which molecule is formed when the protein ferrodoxin transfers electrons to an electron carrier?

Consider the model of the oxygen cycle on earth. the majority of earth's oxygen reservoirs are found in the a) atmosphere. b) biosphere. c) hydrosphere. d) lithosphere.

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?

How does science influence the decisions made about social, economic, and political issues?