Goes into more depth about symbiosis and how it applies to a real ecosystem.
Students participate in a role play simulation to debate the possibility of establishing a world preserve. Students explore the human impacts on the rain forest and learn how the rain forest effects us. Worksheets included.
Reviews the different roles of organisms in ecosystems.
The intertidal zone is between high and low tides. Tide pool organisms have to be sturdy to deal with lots of changes to their environment.
Energy and nutrients move through ecosystems, including the savanna where wild animals roam for now.
Orthoceras ruled the Ordovician seas and its fossils are widespread and abundant today. This cephalopod had a shell for protection, a siphuncle for transportation and a sea full of other life.