What is included in the study of metaphysics besides cosmology?

The study of metaphysics encompasses various branches that explore the fundamental nature of reality, existence, and the essence of things. Ontogeny, which is included in your choice, refers to the development of individuals over the course of their lives and can be linked to metaphysical inquiries about the nature of being and existence.

In the context of metaphysics, ontogeny ties into the understanding of how entities come into being and evolve, contributing to the larger metaphysical questions regarding the nature of change, identity, and the relationship between an organism and its environment. This focus on development and existence aligns well with the core themes of metaphysics, making it a relevant choice alongside cosmology, which deals with the origins and structure of the universe.

On the other hand, while ethics, aesthetics, and logic are important fields of study, they are often viewed as separate branches in philosophy, each addressing different aspects of human experience and reasoning. Ethics focuses on moral principles, aesthetics examines beauty and taste, and logic analyzes correct reasoning structures. Although they can intersect with metaphysical questions, ontogeny remains directly related to the underlying inquiries that metaphysics aims to address, thereby making it the best choice in this context.