Unit 6: Energy Flow in Ecosystems CFA (Post-Test)

Front

Which organism is at the base of the ocean food web according to the diagram?

Back

Phytoplankton

Front

In the ocean food web, ________ eat sardines. Options: Sea bass, Sea birds, Whale sharks; Dolphins, Jellyfish, Crabs; Octopuses, Sea turtles, Plankton; Seals, Starfish, Sea urchins

Back

Sea bass, Sea birds, Whale sharks

Front

Which of the following is a producer in the ocean food web? Options: Plankton, Phytoplankton, Sea turtles, Octopuses

Back

Phytoplankton

Front

What is the amount of energy received from sunlight per year?

Back

1,700,000 kcal/m²/yr

Front

Refer to the diagram 'Energy flow in ecosystem'. Which group has the highest gross productivity?

Back

Primary producers

Front

Refer to the diagram 'Energy flow in ecosystem'. What is the net productivity of primary consumers?

Back

1,103 kcal/m²/yr

Front

Which trophic level receives 383 kcal/m²/yr as gross productivity?

Back

Secondary consumers

Front

What is the total heat and respiration value shown in the diagram?

Back

20,810

Front

Do decomposers receive energy from all trophic levels?

Back

True

Front

What is the most likely effect on the phytoplankton's biomass if more plankton moved into the ocean ecosystem?

Back

The biomass would be lower for the phytoplankton since there are more consumers now.