Life is all around us, but what exactly makes something "alive"? This fundamental question has fascinated scientists for centuries. Living organisms share certain characteristics that distinguish them from non-living things, and understanding these differences helps us appreciate the remarkable complexity of life itself.
đŦ Key Concepts
Living things show molecular movement
Maintenance functions keep organisms alive
Energy is required for all life processes
Four major life processes sustain life
Amazing Fact!
Even when you're completely still, trillions of molecules in your body are constantly moving, reacting, and working together to keep you alive!
đ¯ Learning Objectives
Understand the key characteristics that distinguish living from non-living things and discover how molecular processes sustain life.