The biocommunicative approach can indeed be reconciled with natural selection, as it does not refute evolution but enriches it. While natural selection explains the survival and reproduction advantages that lead to the development of species, biocommunication looks at the complexity of how organisms interact with their environment and each other. It suggests that the development of the self is not just a product of genetic variation and environmental pressures but also of intricate communication processes that govern life. These processes could influence which traits are advantageous, thus affecting the direction of natural selection.

Biosemiotics offers a framework for understanding human consciousness and identity by interpreting them as emergent from biological processes that are intrinsically interpretative. According to biosemiotics, cells and organisms are constantly engaged in semiotic (meaning-making) activities, not just biochemical interactions. Thus, human consciousness and identity are viewed as arising from these complex semiotic networks where our biological infrastructure is engaged in a continuous dialogue with itself and its environment. This suggests that consciousness and identity are not just the result of physical processes but also of the meanings and interpretations these processes generate.

The principle of code-duality within biosemiotics recognises that organisms are guided by two fundamental types of codes: the genetic code and the analog dynamic processes of life. This impacts our understanding of genetics and the self by suggesting that while genetic code carries information crucial to biological functions, it does not operate in isolation. Instead, it works in tandem with a myriad of other 'analog' biological processes to shape the organism's development. Therefore, our selfhood is influenced not just by our DNA sequence but also by how these sequences are expressed and regulated by the organism’s interaction with its environment.

Understanding the biochemical basis of thought processes provides a materialistic perspective on the mind-body problem, suggesting that mental states are directly correlated with brain states. This could support physicalist theories, which hold that everything about the mind can be explained in terms of physical processes in the brain. On the other hand, it also raises questions about the subjective quality of experiences (qualia) and whether these can be fully explained by biochemistry. Thus, while a biochemical understanding of thought processes may advance the argument that mental states are brain states, it also challenges philosophers to explain how subjective experiences arise from physical processes.

Emergence posits that certain complex systems have properties that their individual parts do not possess, and these properties cannot be predicted from the characteristics of the single parts. This directly challenges biochemical reductionism, which maintains that all biological phenomena, including those contributing to the concept of the self, can be explained entirely by chemical processes. Emergentists would argue that the consciousness, emotions, and subjective experiences that constitute the self arise from the interactions of simpler biological processes but are not equivalent to them. This perspective insists that while biochemical reactions are fundamental to life, they cannot fully account for the higher-order complexities of the human mind and the nuances of the self.