What is the primary source of genetic variety behind natural selection and evolution? selected mutations of dna random mutations of dna selected mutations of rna random mutations of dnr

19. scientists use meteorites that hit earth to provide evidence of the composition of earth's interior because they hypothesize that

Monomers are the building blocks of larger molecules, called polymers. for example, proteins are composed of chains of amino acids that are linked together. cellulose is a polymer that makes up plant cell walls. cellulose is made from a chain of c6h10o5 molecules. which monomers are most likely used to produce cellulose? why?

What are two examples of conduction that we use everyday