A spherical layer of gases that surrounds the Earth's surface
What is the atmosphere?
Includes water below, on, and above Earth's surface
What is the hydrosphere?
Self-feeders who make their own food
What are producers?
Humans are a part of this trophic level
What is the fifth level?
The main driver of nutrient cycling
Where the ozone layer is
What is the stratosphere?
Includes the Earth's crust, mantle, and core
What is the geosphere?
The process in which producers make their own food
What is photosynthesis?
Process that absorbs oxygen and releases carbon dioxide
What is respiration?
Herbivores are found in this trophic level
What is the second level?
Atmospheric gases that absorb and release heat that warms the lower atmosphere.
What are greenhouse gases?
Includes all living organisms on Earth
What is the biosphere?
Includes living components in an ecosystem
The dry weight of all organic matter contained in an organism.
What is biomass?
3 primary paths of energy flow in an ecosystem
What is photosynthesis, feeding, and decomposition?
The layer of the atmosphere where humans live and where weather occurs
What is the troposphere?
The 4 systems of Earth
What is the atmosphere, hydrosphere, geosphere, and biosphere?
Includes nonliving components of an ecosystem
What are abiotic components?
2 most important consumers in nutrient cycling
What are decomposers and detritivores?
This organism produces most of the Earth's oxygen through photosynthesis
What are phytoplankton?
Most abundant gas in Earth's atmosphere
What is nitrogen?
Protects humans from harmful sun rays
What is the atmosphere?
The opposite of photosynthesis
What is respiration?
Biomass production is measured by this
What is gross primary production (GPP)?
The reason why there are more ants in the world than top predators