Life on a continental planet with seas of liquid oxygen would be dramatically different from life on Earth. Firstly, the availability of liquid oxygen as a solvent instead of water would have a significant impact on the biochemistry of life forms. Carbon-based life as we know it on Earth relies on water as a universal solvent, but in this scenario, life forms would need to adapt to utilize liquid oxygen as their solvent. This means that the fundamental building blocks of life, such as proteins and nucleic acids, would likely be chemically different from those on Earth. One possibility is that life on this planet could still be carbon-based, but with a biochemistry that is significantly different from what we are familiar with. Instead of using water as a solvent, organisms could have evolved to use liquid oxygen, incorporating it into the molecular structures of their cells. These organisms might use oxygen-based compounds for respiration, energy storage, and cellular processes, instead of the carbon-based compounds used by life on Earth. Another possibility is the presence of non-carbon-based life forms. Life based on other elements, such as silicon or sulfur, could have evolved on this planet. These elements have chemical properties that could potentially support different types of biochemistry. Organisms based on silicon, for example, could form silicon-silicon bonds rather than carbon-carbon bonds, leading to a completely different set of organic compounds and metabolic processes. Furthermore, the presence of liquid oxygen seas would have a profound impact on the environment and ecosystem. Oxygen is a highly reactive element, and the presence of liquid oxygen suggests a planet with a highly oxidizing atmosphere. This could lead to frequent wildfires or combustion reactions in the environment, changing the nature of the terrestrial landscape. Life forms would need to develop adaptations to protect themselves from this reactivity or even utilize it as a source of energy. In conclusion, life on a continental planet with liquid oxygen seas would likely be fundamentally different from life on Earth. The biochemistry of life forms would be adapted to use liquid oxygen as a solvent, either through carbon-based or non-carbon-based chemistry. The environment would be characterized by highly oxidizing conditions, challenging life forms to develop unique adaptations to survive and thrive.