What is a life function that provides the substances an organism uses for its growth and for repair of its tissue?

What is the process of pulling apart an n2 molecule nevermind i got it

What does polymerase chain reaction (pcr) do? o a. separates dna fragments by size o b. cuts a dna sample into fragments o c. provides an overall picture of a person's chromosomes o d. makes more copies of a sample of dna

Which prefix mean under less or below