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

Ex Input:
Ectothermic vertebrates control body temperature to just a limited extent from the outside by changing behavior.

Ex Output:
What type of vertebrates control body temperature to just a limited extent from the outside by changing behavior?


Ex Input:
Plankton is the most common life form in the ocean.

Ex Output:
What is the most common life form in the ocean?


Ex Input:
Specific scents are often associated with memories.

Ex Output:
Specific scents are often associated with what?