The first organisms to repopulate an area affected by a volcanic eruption are called

What element does susan b. anthony include in this passage to strengthen her argument?

Tides that occur during the new and full moons

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