Which parameters characterize an air mass that develops over an equatorial ocean?
a) humid and cold
b) warm and dry
c) humid and warm
d) dry and cold
e) extremely unstable

Which technically is nasa developing that will astronauts reach mars

Which phase of the cell cycle ensures that identical copies of the dna are made for daughter cells?

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