They converted carbon dioxide to oxygen. The increased oxygen levels allowed for cellular respiration to occur instead of only glycolysis. The atmosphere became thinner, decreasing temperatures of the planet as well.
<span> Ribosomes makes mRNA to </span>assemble amino acids into <span>polypeptide chains. The decoding of an mRNA message </span>into<span> a </span>protein<span> is a </span>process <span>known as translation.</span>
Metals conduct electricity and heat, indicating that the electrons are free to move. Metals are malleable, showing that atoms are not in fixed positions but can remain bonded even though they change their positions. In metallic bonding, atoms donate electrons to a pool and all the atoms share in the pool. No compounds are formed, but the atoms are bonded into a network.
