Consumers produce their own food.

Energy cycles through ecosystems because it returns to the Sun.

Available energy increases as it is transferred from one organism to another in a food chain.

Which of the following would eat a dead rabbit?

The source of almost all energy on Earth is the climate.

Some organisms get carbon from ................... and other from ...............................or ..........................

Which process can release carbon to the air and into the soil?

Which of the following is NOT a way that carbon is stored in the environment as a fossil fuel?

water covers about .................. of the earth's surface

Most of Earth's water about 97% is in ......................................

Which is a model of feeding relationships?

Which of the following organisms would NOT be in the first trophic level of an energy pyramid?

Which is most likely the first step in a basic food chain?

Which of the following eats only eucalyptus leaves?

Multiple choice question.

Which of the following would eat a hamburger with lettuce on it?

Multiple choice question.

As you move upward, from level to level, in an energy pyramid, available energy ____.

A student draws this diagram to show the energy flow in an ecosystem that contains producers, consumers, and decomposers.

The diagram is incomplete. Which statement best describes how the student should complete the diagram?