proteins are one of the most abundant organic molecules in living systems and have the most diverse range of functions of all macro molecules. the functions of proteins are very diverse because there are 20 different chemically distinct amino acids that form long chains, and the amino acids can be in any order. For example, proteins can function as enzymes or hormones.
Archean and Proterozonic which are both broken into early middle and late periods
<span>mitochondria ribosomes endoplasmic reticulum</span>
Caverns most commonly form in limestone
The light ray bends toward the normal when entering water
