Which is a difference between proteins and carbohydrates and fats? a. proteins are macromolecules; carbohydrates and fats are not. b. proteins are composed of monomers; carbohydrates and fats are not. c. carbohydrates and fats contain carbon, hydrogen, and oxygen; proteins do not. d. excess carbohydrates and fats are stored; excess proteins are not.

Heat from earths interior and pressure from overlying rock transform the remains of marine sediments into

Which statement about dna replication is true? a. eukaryotes only have one circular chromosome that unwinds at multiple locations. b. eukaryotes can only replicate one segment of a chromosome at a time. c. prokaryotes can only replicate their single circular chromosome in the nucleus. d. prokaryotes only have one origin of replication to initiate replication.

How does natural selection change thephenotypes within a population over time?