Ch. 3 Earth's Systems Test

Front

What is a negative feedback loop?

Back

A process where the output of a system reduces or counteracts the initial input, helping to stabilize the system.

Front

What is a feedback loop?

Back

A process in which an event acts as both an input and output of the same system.

Front

What are biogeochemical cycles?

Back

Complex cycles in which nutrients circulate endlessly throughout the environment.

Front

What are the three main parts of Earth's geosphere?

Back

The crust, mantle, and core.

Front

What is a consumer in an ecosystem?

Back

An organism that must get nutrients by eating other organisms.

Front

What is the geosphere?

Back

The solid part of Earth, including the crust, mantle, and core.

Front

What is the atmosphere?

Back

The layer of gases surrounding Earth.

Front

What is the hydrosphere?

Back

All the water on Earth, including oceans, rivers, lakes, and groundwater.

Front

What is a producer in an ecosystem?

Back

An organism that can make its own food, typically through photosynthesis.

Front

What is a decomposer?

Back

An organism that breaks down dead or decaying organic material.