What was conclusive evidence of the importance of the Sierra Mixe corn?
A) Bennett and his team were able to breed a smaller form of the corn that grew in colder weather.
B) Pollution tests in local lakes and rivers showed lower levels of nitrogen after the corn was planted nearby.
C) Analysis proved that the gel contained high oxygen and low sugar, which makes it excellent cattle feed.
D) Five different tests proved the nitrogen produced by the microbes had provided for the corn’s needs.
What was conclusive evidence of the importance of the Sierra Mixe corn?
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The correct answer is D) Five different tests proved the nitrogen produced by the microbes had provided for the corn’s needs.
Explanation: This option highlights a direct relationship between the microbes and the corn’s nitrogen needs, demonstrating the ecological importance of Sierra Mixe corn in its environment. The tests show that the corn relies on the microbes for essential nutrients, which indicates its significance in sustainable agriculture and its role in the ecosystem.