An ecosystem is a community of living organisms in conjunction with the nonliving components of the environment, interacting system. It can be very large or very small. The whole Earth’s surface is a series of connected ecosystems. These abiotics and biotic components are linked together through nutrient cycles and energy flow.
Within the ecosystem there are producers, consumers and decomposers.
The producers are plants. They make their own food, which creates energy for them to grow, reproduce and survive. Being able to make their own food makes them unique; they are the only living things on Earth that can make their own source and energy.
The consumers are organisms that need to eat food to obtain their energy; such as us humans and animals. Consumers like lions to survive and obtain their energy just like us humans.
The decomposers are the organisms that break down dead or decaying organisms, they carry out decomposition, a process possible by only certain kingdoms, such as fungi.
Food chain and food web are similar to each other except that food chain is a chain that goes in a line (an organism that gets eaten by another organism), whereas food web is a variety of different organisms eating the same food.
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