Ecologists also study how energy flows through an ecosystem. As each species in an ecosystem consumes another species, the energy flows from the prey to predator. These actions form complex webs through which energy and nutrients travel. In this topic, you will explore these transfers of energy through ecosystems. In addition, you will examine food chains and food webs. Finally, you will learn about three different cycles in ecosystems - the water cycle, the carbon cycle, and the nitrogen cycle.
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