What is NOT true of headwaters?

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Multiple Choice

What is NOT true of headwaters?

Headwaters are the source area of a river, and they are typically cold, clear, and well oxygenated due to fast, turbulent flow. This harsh, low-nutrient environment supports fewer species, with organisms that are specially adapted to swift currents, so biodiversity tends to be limited upstream. As water streams downstream, nutrients accumulate and habitats become more complex, allowing more species to coexist, which is why biodiversity generally increases downstream. So the statements that headwaters are the source area of a river, that they are often cold and clear, and that they have limited biodiversity compared to downstream are true. The idea that the water contains a wide variety of organisms is not true for headwaters, given the conditions that limit species richness there.

Headwaters are the source area of a river, and they are typically cold, clear, and well oxygenated due to fast, turbulent flow. This harsh, low-nutrient environment supports fewer species, with organisms that are specially adapted to swift currents, so biodiversity tends to be limited upstream. As water streams downstream, nutrients accumulate and habitats become more complex, allowing more species to coexist, which is why biodiversity generally increases downstream. So the statements that headwaters are the source area of a river, that they are often cold and clear, and that they have limited biodiversity compared to downstream are true. The idea that the water contains a wide variety of organisms is not true for headwaters, given the conditions that limit species richness there.

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