They always start with an organism that makes food. The producer. In this example, it's grass. The first consumer in the chain, in this case the grasshopper, is also called the primary consumer.

Each food chain is a descriptive diagram including ... Food webs illustrate energy flow from primary producers to primary consumers (herbivores), and from primary consumers to secondary consumers ...

All living things need energy from food to grow, repair themselves and reproduce. Plants get their energy from sunlight in photosynthesis. Animals need to eat plants or other animals to get their ...