The number of protons plus the number of neutrons equals the atomic number atomic mass atomic weight atomic neutrality

What is the function of nucleic acids

Which organisms have pharyngeal arches that develop from all three germ layers and go through the same development stages as embryos? 1.bird 2.ladybug 3.starfish 4.snake

Explain the source of radioactivity in uranium in earth’s crust by which it produces nuclear radiation