An ecosystem is made up of biotic (living) and abiotic (nonliving) things. Which of the following describes the BIOTIC part of the ecosystem?

The rainforests in South America support many ecosystems. These ecosystems are healthy. How does the diversity in the rainforests help determine the health of an ecosystem?

Temperature, water, soil, and air are abiotic factors in an environment. They are not the same everywhere. What role do abiotic factors such as these play in an ecosystem?

Invasive plants compete with native plants for resources. Which statement describes what is likely to happen to native plants that compete with fast growing invasive plants?

Megan's class has decided to RESTORE an empty lot to the way it was before the town was built. Before they buy any plants or soils, what must they determine?

Carrotwood is a fast growing landscape tree. This tree is found in many habitats including dunes, coastal areas, freshwater marshes, and riverbanks. It crowds out native plants and competes for light and other resources. Carrotwood is...

After large numbers of people moved to an area, several species of animals and plants became extinct. Which event most likely led to the extinction of so many species in a short amount of time?

The average weather in an area over time...

The variety of species in an ecosystem

Nonliving...

The struggle for resources in an ecosystem

A problem with overpopulation is that...

What is the PRIMARY purpose of the needle-like leaves on a cactus?

A structure on an organism can only have ONE function.

Which of the following does NOT depend on any other organism for energy?

Which of the following pairs is a correct match?

Which of the following is NOT a decomposer?

What is special about a decomposer?

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