Final answer:
The professor prefers to rename 'Alterations of Generations' as 'Alteration of Phases' to accurately reflect the concept.
Step-by-step explanation:
The professor prefers to rename 'Alterations of Generations' as 'Alteration of Phases' because it more accurately reflects the concept. Instead of implying changes in genetic generations, it suggests shifts between different forms or phases within a single generation's life cycle, such as the sporophyte and gametophyte stages in plants.
'Alterations of Generations' refers to the alternating stages between haploid and diploid cells in the life cycle of organisms like plants and fungi, while 'Alteration of Phases' emphasizes the change in phase or form during the life cycle.