OBJECTIVE LIFE SCIENCE
ECOLOGY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Corn planted in a field that has been previously planted with legumes and then plowed under is likely to be
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less productive because legumes remove phosphorus from the soil
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less productive because the legumes have already taken all the nitrogen, carbon, and phosphorus from the soil
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more productive because nitrogen-fixing bacteria help to keep away pests
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more productive because bacteria living on the roots of legumes fix nitrogen in the soil
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Explanation:
Detailed explanation-1: -Legumes are able to form a symbiotic relationship with nitrogen-fixing soil bacteria called rhizobia. The result of this symbiosis is to form nodules on the plant root, within which the bacteria can convert atmospheric nitrogen into ammonia that can be used by the plant.
Detailed explanation-2: -Yes, the root nodules of leguminous plants have nitrogen-fixing symbiotic bacteria.
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