Select all the correct answers.The following image is a food web in an aquatic ecosystem. What two possible consequences will an increased population of water fleas lead to? decreased producers decreased primary consumers decreased secondary consumers increased producers increased secondary consumers

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

State the problems which will arise if there is an increase or decrease in the number of any component in a food chain or a food web.

Select all the correct answers.In an aquatic ecosystem, the fishing of a particular fish species increased. This fish species is a secondary consumer in an energy pyramid. The fishing of the species led to a decrease in its population. In which two ways will this affect the food web? The higher levels in the pyramid will receive more energy. The higher levels in the pyramid will receive less energy. The lower levels in the pyramid will have less predation. The higher levels in the pyramid will receive no energy at all. The lower levels in the pyramid will receive less energy.

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.