Trophic Levels and Food Webs Answers

If a predator is eliminated from an ecosystem its prey’s population will likely _______.

The initial period of population growth for a species in an environment is _______.

In a trophic pyramid, which of the following populations would be found in the trophic level directly above the producers?

Organisms produce their own energy or provide energy for other organisms in a food chain. Yellowfin tuna, or Thunnus albacores, are large sport fish 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 smaller fish that may be foraging for food. Photo by NOAA Which trophic level does yellowfin tuna fill in a food chain?

A quaternary consumer species would be expected to have a smaller population than a secondary consumer species.

It is advantageous for a predator to prey exclusively on a single prey species.

Energy flow in an ecosystem is best represented by _______.

All animals are _______.

The main producers in aquatic environments are _______.

Scientists use different types of models to analyze the structure of ecosystems. Which characteristic is seen in a biomass pyramid, but not in a numbers pyramid?

Which of the following has the most biomass?

Which class of organisms gather their energy directly from the sun?

Which of the following is an autotroph?