A linear series of steps in which one organism tranfers energy to the next by eating or by being eaten

All of the living organisms in a given area as well as the abiotic factors with which they interact is referred to as..

The rate at which the producers in an ecosystem capture light energy from the sun and store it in molecules of glucose is referred to as..

A diagram that shows the relative amounts of energy or matter within each trophic level

An organism that obtains energy by consuming other animals

Name given to organisms that have the ability to produce their own nutrients using inorganic compounds

Organisms that feed on dead plants and animals, animal wastes, and other dead matter

Name given to a step in a food chain

A process in which elements and chemical compounds are passed from one organism to another

Name given to organisms that cannot make their own food

Term used to describe the amount of organic material in an ecosystem

Organisms that obtain energy by eating both plants and animals

The total amount of glucose produced in an ecosystem minus the amount used in cellular respiration by producers

A single compound that limits growth in an ecosystem when it is scarce or absent

A network of complex interactions formed by the feeding relationships amount the various organisms in an ecosystem

Organisms that cause decay by breaking down complex organic compounds into simpler substances

The loss of water from the leaves of plants is called what?

In what process does water change from a liquid to a gas?

#8, #9 & #11 represent the same process. Identify the process.

#3 & #6 represent the same process. Identify the process.

In what process do green plants covert carbon dioxide and water into molecules of glucose?

What process removes carbon dioxide from the air?

What process do all living things use to convert glucose into ATP?

Plants need nitrates in order to build which compound?

The conversion of nitrogen gas to ammonia is called...

The production of ammonia by bacteria during the decay of organic matter is called:

The absorption and incorporation of nitrogen into plant and animal compounds is referred to as...

The production of nitrates from ammonia is called

The conversion of nitrate to nitrogen gas is called

A few organisms on Earth can use the energy from inorganic chemical reactions to produce molecules of glucose. This process is called:

Herbivore are also called:

All of the following are factors that effect net primary productivity in terrestrial ecosystems EXCEPT:

Which of the essential elements doe NOT enter into the atmosphere?