If a rock layer is found which contains thousands of fossil fish, the fossils piled up as each fish died one at a time.
the rock layer could have taken thousands of years to form.
all the fish had to be quickly buried together.

Which prevent errors in dna replication? a. helicase enzyme checks the dna for errors. b. each base can attach to only one other type of base. c. ribosome enzymes prevent errors from happening. d. dna contains no complementary base pairs.

What are chlorofluorocarbons made of

Why did rutherford say that bombarding atoms with particles was like "playing with marbles" what