Answer/Explanation:
letters are used as a sign of chemical symbols in today's time
The answer to you question is 3
The scientists research project with the goal of determining the sequence of chemical base pairs which make up human DNA, and of identifying and mapping<span> all of the genes of </span>the human genome<span> </span>
Answer:
Elements
Explanation:
Each kind of atom is an element. Elements are pure substances that cannot be broken down into simpler substances by ordinary chemical means.