Unit A: Interactions and Ecosystems

Cloning makes it possible to bring extinct species back to life. But is that a good idea?

The ocean is full of very small but very useful creatures called microbes. Without them, none of the sea plants or animals you’ve seen would exist!

Do an experiment with celery to learn about the structures that help plants take up water.

You can make your own terrarium for growing plants!

When a species ends up outside of its natural zone, the consequences on other species, ecosystems and human industries can be severe. Climate change and human activities can introduce species into new zones.

Arctic animals have evolved to thrive in harsh arctic ecosystems, but the environmental footprint created by climate change is affecting their survival.

Scientists can observe birds to get useful information about the health of, and changes in, an ecosystem.

When fertilizers from agriculture get into lakes and rivers, big problems can result for aquatic ecosystems, food chains & webs!

Beavers are a Canadian symbol. But in South America, they’re considered an invasive species.

Wind power is a growing source of electricity generation. But wind projects often affect local wildlife populations, and researchers are using environmental monitoring techniques to alleviate some of these impacts.