Food Chains
Food Chains start with a producer. A producer is an organism that makes it's own food, and gets it's energy from the sun. The consumer is an organism that eats the producer (deer). The deer is a herbivore, meaning it only eats plants. Next is the wolf, the wolf eats the deer, which is what makes it a carnivore. A carnivore only eats meat. Lastly is the worm, or decomposer. When the wolf dies, it will rot and decompose. The worm is what makes it decompose. It uses the wolf's nutrients to fertilize the soil helping the plants grow.
In the food chain above, the arrow pointing from the grass to the deer is showing that the nutrients and energy from the grass is going to the deer. Same with the arrow pointing from the deer to the wolf, and the arrow pointing from the wolf to the worm.
In the food chain above, the arrow pointing from the grass to the deer is showing that the nutrients and energy from the grass is going to the deer. Same with the arrow pointing from the deer to the wolf, and the arrow pointing from the wolf to the worm.