Answer:
The producer is the grass, and energy flows from the mouse to both the snake and the owl.
Step-by-step explanation:
The producer is usually defined as a "Producers, also known as autotrophs, make their own food.". Thus, the grass is the producer of the food web provided.
The energy also flows from the mouse to the snake and the owl, as the mouse has two arrows that lead away from it, leading both to the snake and the owl.
Hope this helps.