Give me an example of a hypothesis like for example if the pollution increases then the less stars you see in the sky., something like that

Question: How does the size of a dog affect how much food it eats?

Hypothesis: Larger animals of the same species expend more energy than smaller animals of the same type. To get the energy their bodies need, the larger animals eat more food.

hope this helped (^-^)

Vaccine, bacteria, pathogens, cells, toxins, antibiotics. In that order vaccine being first