Ecosystems may change over observable spans of time. Changes in the ecosystem may be the result of human activities. This class project will demonstrate the learning which has occurred during the unit. Living things interact with their environment forming interdependent systems which transmit energy through different networks. Forest ecosystems consist of networks of interdependent and interrelated elements which can be impacted by external interactions.
Organisms have specific requirements for survival including specific environmental conditions.
The environment must provide an organism with resources so it can obtain appropriate food, shelter, and water. Different assemblages of organisms will be found in different environments. Many small distinct environments may exist within a larger environment. The greater the variety of small environments, the greater the diversity of living things. Organisms within an ecosystem interact with their physical environment and with each other.