Which nutrient, identified in the 2010 Dietary Guidelines for Americans, is considered "a nutrient of concern"?

'which of these statements about the scientific method is not true? all experiments must follow the same number of steps in the procedure. experiments may be repeated several times. some unexpected results can be beneficial. experimental results may or may not support the hypothesis.

Which description provides the best objective summary of the article in the passage?

Which of the organisms listed below performs nitrogen fixation? a. legumes b. plants c. bacteria d. fungi