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

Ex Input:
What is the basic structure that holds plants upright, allowing plants to get the sunlight and air they need?

Ex Output:
stem

Ex Input:
Because action potentials are so brief, a neuron can produce hundreds per what?

Ex Output:
second

Ex Input:
What takes place directly after developing a hypothesis in the scientific method process?

Ex Output:
testing the hypothesis