In Each of the Three Chemosynthetic Reactions (Hydrogen Oxidation, Sulfur

__________ is to prokaryotes as photosynthesis is to plants. A) Amino acid production B) Banded-iron formation C) Chemosynthesis D) Warm adaptation

Organic compounds of the kind required for the origin of early life readily dissolve in the warm waters of the mid-ocean ridge area, but these compounds are protected in that warm area by A) nickel and zinc. B) anoxic waters. C) water pressure. D) lack of phosphorus.