Part 1. Definition
Given a scientific question, generate a correct answer to it.
Part 2. Example
Who proposed the theory of evolution by natural selection?
Answer: darwin
Explanation: This is a direct fact that Charles Darwin proposed the theory of evolution.
Part 3. Exercise
The size and symmetry of a beetle’s or an elk’s antlers or a grasshopper’s song communicate rather clearly their state of what?
Answer:
health