Answer:
Animals - Plants - Energy
Plants gain energy through photosynthesis, which is then eaten by animals, which gets eaten by animals, etc.
Then, Animals die, and the energy is passed on to the soil, which passes to the plant.
A hypothesis is when you make an educated guess before you complete the experiment. It is basically an inference on what might happen next. So a conclusion made based on facts.
the first one is a mollusca