Recycling
Cells need this to do work
What is energy?
This word means ocean
What is marine?
Earth has this many subsystems
What is four?
This is a collection of interacting parts
What is a system?
These organisms depend on both producers and consumers for food
What are omnivores?
An organism that breaks down plant and animal material
What is a decomposer?
An organism that makes its own food
What is a producer?
The layer of gases surrounding Earth
What is the atmosphere?
Referring to water
What is aquatic?
Microscopic animals in aquatic environments
What are zooplankton?
Microorganisms that act as decomposers
What are bacteria?
Feeding relationship between all organisms in an ecosystem
What is a food web?
The interacting water on Earth
What is the hydrosphere?
A system can be made up of many of these
What are subsystems?
When organisms in an ecosystem need the same resource
What is compete?
All food webs should contain this
What is bacteria?
An organism that cannot make its own food
What is a consumer?
Earth's core, mantle, and crust
What is the geosphere?
To act upon one another
What is interact?
A community of organisms interacting with each other and with the nonliving environment.
What is an ecosystem?
Only this remains after decomposition is complete
What are minerals?
Microscopic plantlike organisms in an aquatic environment
What are phytoplankton?
A system of interacting living organisms on Earth
What is the biosphere?
Referring to land
What is terrestrial?
A description of the feeding relationships between organisms in an environment
What is a food chain?