NEED HELP please help taking a test and don’t know the answer

Need an answer asap 45 points and brainlest to the first person to answer why do scientific theories, such as biological and chemical evolution, represent the strongest explanation of the changes observed in the fossil record. must be in sentence form how can scientific theories on evolution and the fossil record change over time? must be in sentence form

What is the difference between a scientific hypotheses and a scientific theory?

Which enzyme is responsible for “unzipping" the dna by breaking the hydrogen bonds between the nucleotides?