Answer:
nucleotides
Explanation:
RNA and DNA are polymers made of long chains of nucleotides.
A cross between two different lines and/ or genes that differ in two observed traits.
paleontology is the study of fossils whilst archaeology is the study of human remains and artefacts
Answer:
Atoms are composed of particles called protons, electrons and neutrons. Protons carry a positive electrical charge, electrons carry a negative electrical charge and neutrons carry no electrical charge at all.
Explanation:
