TY - BOOK AU - Gerking, Shelby D. TI - Biological systems U1 - 574 PY - 1969/// CY - Philadelphia PB - W.B. Saunders Co. KW - Biology KW - Laboratory manuals. N1 - Table of Contents The elementary unit of life: the cell Multiplication by division Basic chemistry of the cell The plasma membrane Classification Bacteria and viruses The stem, the root and the leaf Photosynthesis Life from the soil Life from water The heart and the blood The fate of food materials Exchange of oxygen and carbon dioxide Cellular bioenergetics Waste disposal Nervous coordination, etc Includes index ER -