To be an effective solvent in living systems, a substance must be able to meet all but one of the following requirements, namely a) remains liquid over a wide temperature range. b) form a solution with lipid molecules. c) able to dissolve a great variety of chemical compounds. d) provide a safety against extremes in temperature by having a high heat capacity.

B. form a solution with lipid molecules.

Explanation:

To be an effective solvent in living systems, a substance must be able to all BUT one of the following. That is form a solution with lipid molecules. Because water does not combine readily with lipids, lipids are able to form barriers, like cell membranes, within the living system called the cell.

halogen, any of the six nonmetallic elements that constitute group 17 (group viia) of the periodic table. the halogen elements are fluorine (f), chlorine (cl), bromine (br), iodine (i), astatine (at), and tennessine (ts).