What is life?

Life is a characteristic that distinguishes physical entities that have biological processes, such as growth, reproduction, and adaptation, from those that do not, either because such functions have ceased (death), or because they never had such functions and are classified as inanimate. Life is a complex and dynamic process that exists in a variety of forms on Earth, ranging from single-celled organisms to complex multicellular organisms, including plants, animals, and humans.

Life is sustained by the exchange of energy and nutrients, as well as the ability to respond to stimuli from the environment. Organisms are constantly interacting with their surroundings, adapting and evolving over time in response to changes in their environment. The diversity of life on Earth is staggering, with millions of different species occupying a wide range of habitats and niches.

Humans have a unique capacity for self-awareness and consciousness, allowing us to reflect on our place in the world and question the nature of existence. Life is a precious and fragile phenomenon, requiring careful stewardship and conservation to ensure its continued presence on Earth.