Which of these ecosystems has the lowest primary productivity per square meter?
A
Salt marsh
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B
Open ocean
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C
Grassland
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D
Tropical forest
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Solution
The correct option is B Open ocean Primary productivity is a term used to describe the rate at which plants and other photosynthetic organisms produce organic compounds in an ecosystem. .The biomes with the lowest levels of primary productivity include deserts, the tundra, the open ocean, and the lakes and streams biome.