Trophic Levels and Food Webs Answers

Which organism gathers its energy directly from the sun?

The initial period of population growth for a species in an environment is _______. a. linear b. exponential c. slow d. negative Please select the best answer from the choices provided

Which of the following has the most biomass?a.quaternary consumersb.secondary consumersc.primary consumersd.producers

Which best describes the trophic level of an organism?

In a trophic pyramid, which of the following populations would be found in the trophic level directly above the producers? a. hawks b. rabbits c. snakes d. trees Please select the best answer from the choices provided

The elimination of a predator has no negative impacts on that predator’s prey species.

Which shows the correct order of increasing trophic level, from producer to tertiary consumer?

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?

Producers are always the highest level in trophic pyramids. Please select the best answer from the choices provided

Which is not an advantage of using the Pyramid of Energy?a.It takes into account the rate of production over a period of time.b.Assigning the decomposers and detritivores to a particular trophic level.c.There are no inverted pyramids.d.The input of solar energy can be added.