TY  - BOOK
AU  - Gerking,Shelby Delos
TI  - Biological systems
U1  - 574 
PY  - 1969///
CY  - Philadelphia
PB  - W. B. Saunders
KW  - Biology
N1  - 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;
chemical coordination;
animal reproduction and development;
plant reproduction and development;
inheritance;
molecular genetics;
ecology;
species emerging

ER  -