What is true about an element?
there are no pure elements
an atom is the smallest part of an element
elements may be broken into smaller parts than atoms.
all elements look the same

What is the function of reverse transcriptase in retroviruses? a) it uses viral rna as a template for dna synthesis.b) it converts host cell rna into viral dna.c) it translates viral rna into proteins.d) it uses viral rna as a template for making complementary rna strands.