What is the study of organisms and how they interact with their environment?
What do you call the living parts of an ecosystem?
A sequence that links species by their feeding relationships is called what
The circular pathway of water on Earth form the atmosphere to the surface and below the surface and back again is known as what?
Organisms that get their energy from nonliving resources are called what?
What do you call a group of different species that live together in one area?
What do you call the nonliving parts of an ecosystem?
What do you call the model that shows the complex network of feeding relationships and the flow of energy within an ecosystem?
What do you call the process that bacteria use to change gaseous nitrogen into ammonia?
What is another name for a producer?
What do you call all the organisms as well as the environment in which they live?
What do you call the assortment, or variety of living things in an ecosystem?
What organism is always at the beginning of a food chain?
What do you call the movement of a particular chemical through the biological and geological parts of the ecosystem?
Organisms that get their energy by eating other living or once living resources are called what?
What is a major regional or global community or organisms called?
What do you call a species that has an unusually large effect on its ecosystem?
What do you call an organism that eats a variety of other organisms?
In the carbon cycle, carbon cycles from plants to animals and back again by what two processes?
Almost all producers obtain energy from what source?
What three ecological research methods were discussed in this chapter?
Which part of the Earth has the greatest biodiversity?
What do you call the levels of nourishment in a food chain or web?
Which chemical cycle does not include that atmosphere as part of its cycle?
The process by which an organism forms carbohydrates using chemical, rather than light, as an energy source, is called what?