Using your knowledge of dna, why do you think we need rna, if we already have dna in our bodies?

Which would prevent a plant from growing

What are the two causes of density in deep current waters? a. salinity (how much salt) of the water and high temperaturesb. salinity (how much salt) of the water and low temperatures c. oxygen content of the water and high temperatures. d. oxygen content of the water and low temperatures

Which two criteria must be met before scientist can use radiocarbon dating? explain your answer