A food chain always starts with a producer, an organism that makes food. Producers, who make their own food using photosynthesis or chemosynthesis, make up the bottom of the trophic pyramid. Each link in this chain is food for the next link. Producers and consumers. A food chain shows how each living thing gets its food.
Each organism in an ecosystem occupies a specific trophic level or position in the food chain or web. Some animals eat plants and some animals eat other animals. This is often simply assumed, so can be omitted. A food web is all of the food chains in an ecosystem.
All food webs begin with the sun. A food chain shows how plants and animals get their energy. A food chain always starts with a producer.
Asked in Ecosystems , Food Chains and Food Webs , Producers (food chain) Other animals then eat the plants to convert the plant's food into its own food. All food chains ultimately start with the sun as an energy source. For example, a simple food chain links the trees and shrubs, the giraffes (that eat trees and shrubs), and the lions (that eat the giraffes). A food chain outlines who eats whom. Food chains track the progress of energy through organisms, and food webs show the interconnectedness between food chains. Food chains start with green plants because only green plants are able to convert the suns energy into sugars that all creatures including plant need to grow.
No, all food chains must start with a producer that harvests energy from the sun, and distributes it throughout the ecosystem. This is an organism that makes its own food.
This is usually a green plant, because plants can make their own food by photosynthesis.
Generally, plants take the energy from the sun to make their own food.