Given a scientific question, generate a correct answer to it.

Example Input: What does hair get its color from?
Example Output: melanin pigments

Example Input: What is the type of reproduction where part of the parent plant is used to generate a new plant?
Example Output: asexual reproduction

Example Input: The fossil record shows that this type of event is followed by the evolution of new species to fill the habitats where old species lived?
Example Output:
mass extinction