oxygen. 99% of your body is composed of oxygen, nitrogen, hydrogen, calcium. 85% of your body is composed with other elements. I hope that helps!!!
Answer:
D. Mexico was the third one who signed.
The answer to that question is Peroxide.
Are you able to translate to English ?
Answer:
The answer is A
Explanation:
The gene sequence inscribed in DNA, and in RNA, is composed of tri-nucleotide units called codons, each coding for a single amino acid. Each nucleotide sub-unit consists of a phosphate, deoxyribose sugar and one of the 4 nitrogenous nucleotide bases grouped into 2 categories, purine and pyrimidine.