In ecosystems,internal cycling is dominated by

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Quizplus · Accepted Answer

Internal cycling in ecosystems is predominantly carried out by the processes of decomposition and biological uptake. Decomposition breaks down the organic matter and recycles the nutrients available in it, while biological uptake involves the uptake of nutrients by plants and animals and subsequent recycling of these nutrients through their excrete and remains. These processes facilitate the internal cycling of nutrients within an ecosystem. Global nutrient turnover (A) may involve the movement of nutrients between different regions, while wet and dry deposition (B) primarily refer to the deposition of atmospheric pollutants on the land and water surfaces. While photosynthesis (D) is important for the input of energy and oxygen into an ecosystem, it is not a significant process in internal nutrient cycling. Weathering (D) may release some nutrients from rocks and minerals, but this is an external input and not the dominant process in internal nutrient cycling.

In Ecosystems,internal Cycling Is Dominated by