This is possible because when a star dies, it basically expands to its maximum (explodes). Therefore, the materials of the exploded star mix with the primeval hydrogen of the Universe. Later, other stars are formed out of this mixture. Thats also how the sun was formed. :)
C) neurons - nerve tissue - brain - central nervous system - human being
Answer:
complement is a system of plasma protiens that can be activated directly by pathogens
Answer:
electromagnetic radiation refers to the waves of the electromagnetic field, propagating through space, carrying electromagnetic radiant energy.
