Why is it important for dna to be duplicated before mitosis

Which is an example of renewableenergy resource uranium ,wind, or natural gas

How much heat is released upon converting one mole of steam (18.0 g) from 100.0 ∘c to water at 25.0 ∘c? show work and constants, trying to figure out how it works. only given the heat capacity for steam and water so try to only use that

Llama have 74 chromosomes how many chromosomes will they be found in their gametes explain how you know