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By eating producers or other consumers.
consumers eat producers to obtain the energy they need to survive
from the producers
Flies are consumers as producers are normally plants because plants can live without eating any other living thing/animal
Nothing
They get their energy from photosynthesis.
its important because when photosynthesis is in effect it gives off oxygen and oxygen is what we need to live on earth
Consumers. The bottom level is only producers because nothing is below them. Producers, such as grass, provide nutrients for consumers but do not require anything else to live except sunlight and water.
Producers are organisms that can create their own food from raw chemicals and energy from sunlight. (Plants) Consumers are organisms that can't make their own food so they kill and eat other living things to live. (Cows and Tigers) Decomposers are organisms that eat the stuff that consumers leave behind, they rot things away and release the chemicals for producers to re use. (Mushrooms and bacteria).
They provide food for each other. The biomes are composed of consumers and producers. Food is produced and then the consumers eat it to live.
Plants, insects, and pets :)
Free market