Carp are a type of fish that live in freshwater ecosystems. Through the process of natural selection, Carp have developed an adaptation that allows them to increase their gill surface when fertilizer run-offs cause higher populations of algae in their ecosystem. Why is this an important adaptation?

Carp are a type of fish that live in freshwater ecosystems. Through the process of natural selection, Carp have developed an adaptation that allows them to increase their gill surface when fertilizer run-offs cause higher populations of algae in their ecosystem. Why is this an important adaptation?

Increasing the gill surface allowed the Carp to move closer to the surface of the water so they can eat the algae.

The increased gill surface allowed the Carp to stay underwater longer and avoid the algae on the surface.

The increased gill surface enables the Carp to camouflage itself better among the algae.

The increased population of algae lowers the oxygen levels in the water, so the increased gill surface allows the fish to better absorb the limited oxygen supply.

The correct answer is:

The increased population of algae lowers the oxygen levels in the water, so the increased gill surface allows the fish to better absorb the limited oxygen supply. This adaptation is important for the Carp to survive in environments with high levels of algae and low oxygen concentrations. By increasing their gill surface area, Carp are able to extract more oxygen from the water and maintain their respiratory efficiency, ultimately increasing their chances of survival in these challenging conditions.

whats the answer a b c or d

The answer is d) The increased population of algae lowers the oxygen levels in the water, so the increased gill surface allows the fish to better absorb the limited oxygen supply.