Xylem sap is fluid that circulates around a plant that contains inorganic nutrients and water. imagine you are comparing the nutrient content of xylem sap from two plants: one with mycorrhizae and one without mycorrhizae. how would you expect the nutrient content of these two xylem samples to differ? a. xylem sap from the mycorrhizae sample will have less phosphorus. b. xylem sap from the non-mycorrhizae sample will have more phosphorus. c. the amount of phosphorus will be the same in both samples. d. xylem sap from the mycorrhizae sample will have more phosphorus.

Option D

Explanation:

Xylem sap from the mycorrhizae sample will have more phosphorus.

Mycorrhiza is a mutually beneficial association between a fungus and a green plant. The fungus supplies to the plant mineral nutrients, such as phosphorus, and water taken from the soil; while the plant produces organic molecules such as sugars by photosynthesis and supplies them to the fungus.

Ordinarily, some green plants like brassica napus are unable take up phosphorus present in the soil, hence, an association with fungus (mycorrhizae) helps compensate for that disability - making phosphorus abundant in its xylem sap; while the one without mycorrhizae will have less phosphorus in its xylem sap

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