What are all the similarities and differences between Demeter and Ceres?

Demeter and Ceres are both goddesses of agriculture and fertility in Greek and Roman mythology, respectively, representing the nurturing aspects of the earth. They share similar attributes, such as associations with grain, harvest, and the cycle of seasons. However, Demeter is primarily a figure in Greek mythology, while Ceres is her Roman counterpart, with variations in their myths and cultural significance. Additionally, Demeter is closely linked to the Eleusinian Mysteries, while Ceres has a more generalized role in Roman religious practices.