The answer to this question is "D"
The trend for mushroom yield as the concentration of heavy metals in the soil increases is generally negative, but some mushroom species may tolerate and accumulate certain heavy metals.
Increased Concentration of Heavy Metals in the Soil and Mushroom Yield :
The trend for mushroom yield as the concentration of heavy metals in the soil increases can vary depending on the type and tolerance of the mushroom species. Some mushrooms are known to accumulate heavy metals, while others may be more sensitive to them. In general, high levels of heavy metals in the soil can have a negative impact on mushroom growth and yield.
For example, some heavy metals like lead, cadmium, and mercury can be toxic to mushrooms, inhibiting their growth and development. These heavy metals may accumulate in the mushroom fruiting bodies, making them unfit for consumption due to potential health risks.
However, there are also mushroom species like oyster mushrooms that have been found to tolerate and even accumulate certain heavy metals. Some studies suggest that certain mushrooms have the ability to detoxify heavy metals by sequestering them into their mycelium or by transforming them into less harmful forms.
The trend for mushroom yield as the concentration of heavy metals in the soil increases is generally negative, with high levels of heavy metals inhibiting growth and potentially making the mushrooms unsafe for consumption. However, some mushroom species may have tolerance mechanisms and even accumulate certain heavy metals. It is important to consider the specific mushroom species and their tolerance levels when assessing the impact of heavy metals on mushroom yield.
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Answer:
anser is d on e2020
Explanation: