----Interconnections within Ecosystems----
This topic focuses on foundational knowledge of the structures and functions of ecosystems.
Content Statement: All of the processes that take place within organisms require energy.
* For ecosystems, the major source of energy is sunlight.
* Energy entering ecosystems as sunlight is transferred and transformed by producers into energy that
organisms use through the process of photosynthesis.
* That energy then passes from organism to organism as illustrated in food webs.
* In most ecosystems, energy derived from the sun is transferred and transformed into energy that
organisms use by the process of photosynthesis in plants and other photosynthetic organisms.
Content Statement: Organisms perform a variety of roles in an ecosystem.
* Populations of organisms can be categorized by how they acquire energy.
* Food webs can be used to identify the relationships among producers, consumers
and decomposers in an ecosystem.
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