Answers

2015-01-05T21:14:39+08:00

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
In all living systems we can always find 4 basics elements: carbon,oxygen,nitrogen and hydrogen.carbon is the basic building unit contained in living matters is 19.4%. oxygen and hydrogen are present in almost all organic compounds which create living organism.
0