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

Example Input: Which organelle is made up of 5 to eight cup shaped, membrane covered stacks of discs known as cisternae?
Example Output: golgi apparatus

Example Input: Which forests are found throughout the ocean in temperate and arctic climates?
Example Output: kelp

Example Input: What kind of reproduction results in offspring that are generally all genetically different?
Example Output:
sexual