Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

Input: Consider Input: Virtually all aquatic organisms depend directly or indirectly on protists for food.

Output: Virtually all aquatic organisms depend directly or indirectly on what for food?

Input: Consider Input: Technology is the term for the application of science to solve problems.

Output: What is the term for the application of science to solve problems?

Input: Consider Input: Terrestrial biomes are classified by climatic factors and types of primary producers.
Output: What are classified by climatic factors and types of primary producers?