High School Science - HS-LS2-6 - Ecosystem Interactions and Change Over Time
6 Questions
A grassland ecosystem has regular rainfall and a pleasant climate for many years.
Scientists are conducting a twenty year study of a coral reef in Australia.
A coastal kelp forest relies on sea otters to eat sea urchins. Sea urchins eat kelp. In the 1800s, overhunting removed sea otters.
A pond ecosystem experienced one year of very low rainfall. Scientists recorded changes in the pond community before the dry year and during the next three years.
In a rocky shoreline ecosystem, sea stars feed on mussels. Mussels compete with other organisms for space on rocks.
An invasive mussel entered a freshwater lake. Two students make different claims about long-term change.
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