SCIENCE-EARTH S ECOSYSTEMS

What did you learn? What happens when one part of an ecosystem changes? Why can’t trees grow in some grasslands? Lemmings are able to live on the tundra. Why? You have read about the importance of prairie dogs in their habitat. Write to explain the things that prairie dogs do to help keep other living things alive. Main Idea and Details A tropical forest is one kind of ecosystem. List some details from the book about this forest. ...