We would expect the greatest difference in plant health between two groups of plants of the same species, one group with mycorrhizae and one group without mycorrhizae, in an environment ________.

Question

Quizplus · Accepted Answer

Mycorrhizae are known to enhance the uptake of mineral nutrients and water by plants, especially in environments where these are limiting factors. Therefore, the greatest difference in plant health between two groups of plants of the same species, one group with mycorrhizae and one group without mycorrhizae, would be expected in an environment where the soil is relatively deficient in mineral nutrients. Option A is incorrect, as nitrogen-fixing bacteria and mycorrhizae can have complementary functions in providing nutrients to plants. Option B is incorrect because poor drainage can cause waterlogging and negatively affect plant growth, but the effect of mycorrhizae would not be specifically pronounced in such an environment. Option D is also incorrect as proximity to a body of water would not significantly affect the plant-mycorrhizae relationship.

We Would Expect the Greatest Difference in Plant Health Between