: Life requires energy to function. Organisms either produce their own food (like plants) or consume others to fuel biological processes.
: Living things increase in size or complexity over time throughout their lifespan. : Life requires energy to function
: The ability to maintain a stable internal environment (like body temperature) despite changes in the outside world. : Life requires energy to function
: Over generations, populations of living things change to better survive in their specific environment. 2. The Human Experience: What It Means to "Feel Alive" What Really Makes Us Feel Alive (And Why We've Forgotten) : Life requires energy to function