Answer:
substitution, deletion, insertion (in that order)
Explanation:
I did the assignment-
The answer is the second choice: variation, overpopulation, adaptation
Answer:
A
Explanation:
Because there are two DNA strands in the DNA molecule and they both rotate around each other in a helix formation. So two helixes = double helix.
I am thinking the rock that forms from lava that cools quickly is D) Obsidian.