Suppose that scientific research reported that the cod population was reduced in the ecosystem represented by the food web.What result would be most likely over time?Group of answer choicesThe penguin population may decrease.The leopard seal population may decrease.The photosynthetic plankton population may decrease.The krill and zooplankton populations may decrease.

The diagram below shows a food web for an ocean ecosystem.How would an increasing shark population most likely affect this ecosystem? A. The algae population would decrease. B. The limpet population would decrease. C. The seagull population would decrease. D. The octopus population would decrease.

In a marsh ecosystem, alligators feed on blue crabs. Blue crabs feed on saltmeadow grass, shrimp, and detritus. What would most likely happen to the food web if there were a sudden decrease in the number of blue crabs?Group of answer choicesThe populations of shrimp and saltmeadow grass would remain the same while the population of alligators would increase.The population of shrimp and saltmeadow grass would decrease while the population of alligators would increase.The populations of shrimp and saltmeadow grass would increase while the population of alligators would decrease.None of the above

Researchers have hypothesized that a boom in the populations of harp seals and gray seals in some areas of the Atlantic Ocean is linked to the decline in the population of Atlantic cod, one of the main food sources of the seals. Atlantic cod are one of the species most impacted by human fishing, and in the 1990s their populations decreased to such a degree that many governments banned the fishing of Atlantic cod. Without having to compete with another apex predator, seals were allowed to hunt more cod than ever before. Which finding, if true, would most directly support the researchers’ hypothesis?Increases in the populations of harp seals and gray seals are also associated with the decrease of seals' prey other than Atlantic cod.eliminatePopulations of Atlantic cod tend to have seen greater increases in temperate waters, which are generally less hospitable to harp seals and gray seals than arctic waters. eliminatePopulations of harp seals and gray seals have increased most significantly in the regional waters of nations that have banned the fishing of Atlantic cod.eliminateIn the regional waters of nations that have banned the fishing of Atlantic cod, Atlantic cod populations increased, which resulted in a similar increase in the populations of harp seals and gray seals.

A model of a food web is provided in the diagram below.If organism IV is eliminated from the population, what long-term effect could this possibly have on organism V?ResponsesOrganism V would be preyed upon by organism III.Organism V would be preyed upon by organism III.Organism V would not be affected.Organism V would not be affected.Organism V could become eliminated from the ecosystem.Organism V could become eliminated from the ecosystem.Organism V could become overpopulated.

hich of the following is most likely to cause the greatest increase in the corvina population?*2 puntosA decline in the algae populationAn increase in the population of anchoviesA decline in the population of blue fishA decline in crab population