'6 elements make up 99% of a cell's weight: carbon, nitrogen, phosphorus, sulfur & these familiar 2'
hydrogen & oxygen
AROUND THE CELL: 6 elements make up 99% of a cells weight: carbon, nitrogen, phosphorus, sulfur & these familiar 2
6 elements make up 99% of a cell's weight: carbon, nitrogen, phosphorus, sulfur & these familiar 2
6 elements make up 99% of a cell's weight: carbon, nitrogen, phosphorus, sulfur & these familiar 2
AROUND THE CELL
hydrogen & oxygen
AROUND THE CELL