Answer:
geologists and paleontologists/scientists ? (i would need to know the options, but that's what answer i think)
:) have a nice day love ❤
Explanation:
Buildup of organisms means that the species number is pretty high.
Gradual change means that it was a slow, calm time to make the change.
I hope this helps!!
The answer would be - It untwists the double helix and separates the two DNA strands. A helicase is an enzyme used to separate strands of a DNA double helix by breaking hydrogen bonds between annealed nucleotide bases.
