Lab: Interdependence of Organisms — Unit test Answers

In the food chain below, which is the producer?grass mouse snake hawk

Scientists predict that we will eventually use up all available fossil fuels. Which list includes only fossil fuels?

A diagram illustrates that grass is eaten by insects, birds, and mice. The insects are eaten by hawks, snakes, and toads. The birds and mice are eaten by foxes, hawks, and snakes. The toad is also eaten by the snake. Which best describes the diagram?

Which is a nonrenewable resource?

Why are invasive species dangerous to the environment?