Energy Flow in Ecosystems Answers

Which process do plants use to turn sunlight into food energy?

Yellowfin tuna, or Thunnus albacores, are large sport fish that are found in tropical and subtropical waters around the world. They typically school under objects such as boats or patches of driftwood for protection from predators. Schooling under these structures also provides yellowfin tuna with easy access to a food source such as smaller herbivorous fish that may be foraging for food around the structures. Which trophic level does yellowfin tuna fill in a food chain?

A diagram illustrates that grass is eaten by insects, birds, and mice. The insects are eaten by hawks, snakes, and toads. The birds and mice are eaten by foxes, hawks, and snakes. The toad is also eaten by the snake. Which best describes the diagram?

Which organism is a primary consumer in the food web below?

Why are mushrooms important to the food chain?

Food chains show energy transfer between organisms. The size of a food chain can vary, yet there is a limit to the number of levels that a food chain can reach. Why is there a limit to the number of levels that a food chain can reach?

Which organism is an example of a producer?

Which is the primary consumer in this food chain?

From the producer level to which level does energy flow directly?

Which is an interconnection of food chains in an ecosystem?