Read the given information about two gymnosperms, Plant X and Plant Y: Plant X has an obligate root association with a fungal partner. Plant Y possesses small specialized roots that are associated with nitrogen-fixing cyanobacteria. Which of the following statements correctly compares the reproductive features of Plant X and Plant Y?

Step-by-step solution

Plant X has an obligate root association with a fungal partner (mycorrhiza), which is a characteristic of Pinus. Plant Y has small specialized roots associated with nitrogen-fixing cyanobacteria (coralloid roots), which is a characteristic of Cycas. In gymnosperms, Pinus is monoecious, meaning both male and female cones are borne on the same tree. Cycas is dioecious, meaning male cones and megasporophylls are borne on different trees. Therefore, Plant X is monoecious and Plant Y is dioecious. Answer: Plant X is mon