Is it true or false that the four elements comprising over ninety percent of living matter are C, H, N, and Na?

Asked by arwen46 on 11 May 12:25

Last updated by anonymous on 12 May 15:23

Answered by Dr. John Carmen on 12 May 15:23

It's false that the 4 elements comprising over ninety percent of living matter are C, H, N and Na. The Na should be O