Free Flashcard From Biology 1-8 cumulative
About 25 of the 92 natural elements are known to be essential to life. Which four of these 25 1)
elements make up approximately 96% of living matter?
A) carbon, oxygen, phosphorus, hydrogen B) carbon, oxygen, nitrogen, calcium
C) carbon, sodium, hydrogen, nitrogen D) oxygen, hydrogen, calcium, nitrogen E) carbon, hydrogen, nitrogen, oxygen
E) carbon, hydrogen, nitrogen, oxygen