While the two strands of DNA are complementary, they are oriented in opposite directions to each other.
3. positive and a negative ion
A fossil record is evidence for evolution because you can compare the fossiles to see the difference. You can tell how "survival of the fittest" played a part, and what characteristics the species had to help them survive in their environment.
Answer:surface
Explanation:
Just believe me miss gorl
Khdohdxglciftt gu gj ohhh tugy
