Roles in ecosystems & Biogeochemical Cycle

The source of all energy in an ecosystem comes originally from the _________.

• consumers

• producers

• sun

• organisms

A producer in an ecosystem gets its energy by:

• consuming, or eating, other organisms

• breaking down dead organisms

• drinking water

• using the sun to make its own energy

A consumer in an ecosystem gets its energy by:

• consuming, or eating, other organisms

• breaking down dead organisms

• drinking water

• using the sun to make its own energy

A decomposer in an ecosystem gets its energy by:

• consuming, or eating, other organisms

• breaking down dead organisms

• drinking water

• using the sun to make its own energy

An organism eats berries and fish. It is a...

• consumer (herbivore)

• producer

• decomposer

• consumer (omnivore)

An organism consumes fallen tree logs and dead grasses. It is a...

• consumer (herbivore)

• producer

• decomposer

• consumer (omnivore)

Based on what this organism is eating in the picture, what is it?

• Decomposer

• Consumer (carnivore)

• Consumer (herbivore)

• Producer

A food web shows how matter and energy are transferred between only _____________ things.

• living and nonliving

• nonliving

• living

• producers

The arrows in a food web show the direction...

• water is flowing

• matter or energy are flowing

• organisms are moving in

• consumers are moving in

What process do plants use to produce their own energy using sunlight?

• cycling

• cellular respiration

• photosynthesis

• food web