Climate scientists have predicted that an increase in global temperatures could

Question

Climate scientists have predicted that an increase in global temperatures could reduce population sizes of phytoplankton, which are the primary producers in ocean ecosystems around the world. If an ocean ecosystem is under bottom-up control, what effect would a biologist expect?

Populations of plankton-eating fish would increase, which would result in a decrease in the populations of predatory fish.

Populations of other aquatic animals would increase.

Populations of plankton-eating fish would decrease, which would result in an increase in the populations of predatory fish.

Populations of other aquatic animals would also be reduced.

Populations of plankton-eating fish would increase, which would result in a decrease in the populations of predatory fish.

Populations of other aquatic animals would increase.

Populations of plankton-eating fish would decrease, which would result in an increase in the populations of predatory fish.

Populations of other aquatic animals would also be reduced.

Explanation / Answer

Answer D Populations of other aquatic animals would also be reduced.

Food chain is

Phytoplankton -->plankton eating fish--> ptedatory fish

With reducing number of phytoplankton the number of organism in food chain will decrease as they are dependent on each other. Long term effect will be reduction in aquatic organisms.

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