What characteristics do living creatures have in common? PROPERTIES OF LIFE

Characteristics of Living Things 1. Organization 2. Energy 3. Reproduce 4. Respond 5. Grow and Repair 6. Evolve 7. Interdependence  7 unifying themes in living organisms…

carbohydratesProteins Living Creatures are ORGANIZED  All made of the same collection of chemicals, but we are organized as 4 types of specific molecules ○ proteins, fats, carbohydrates, nucleic acids DNAFats

Living Creatures are ORGANIZED Made up of cells: Can be unicellular or multi-cellular UNICELLULAR MULTI-CELLULAR

Living Creatures are ORGANIZED Structural Organization for Multi-Cellular Organisms - organelles – functional units of a cell - cell - smallest unit of life - tissue - group of cells that perform a common function - organ - group of tissue that perform a common function - organ system - a group of organs that perform a common function - organism - any complete living thing

Living Creatures use ENERGY  Metabolism - all the reactions your body performs to make & use energy ○ eating & digestion & elimination of waste ○ synthesis = building materials the body needs ○ cellular respiration = making energy the body needs mitochondria H2OH2O CO 2 ATP

Living Creatures REPRODUCE  Make the next generation

Living Creatures REPRODUCE  2 Types of Reproduction:  asexual: 1 parent: offspring identical to parent  sexual: 2 parents: offspring not identical to parents DID YOU KNOW: A species is a group of organisms that can interbreed and produce fertile offspring in nature

Living Creatures RESPOND  Respond to internal and external changes to keep homeostasis This means maintaining balanced conditions in the body

Living Creatures RESPOND  Anything in an organism’s environment that causes the organism to react is a stimulus. A reaction to a stimulus is a response.

Living Creatures GROW  Growth results in an increase in the amount of living material and the formation of new structures. DNA has to replicate and protein synthesis needs to occur in order for growth to happen

Living Creatures GROW  All of the changes that take place during the life of an organism are known as its development.

Living Creatures EVOLVE  Any structure, behavior, or internal process that enables an organism to respond to environmental factors and live to produce offspring is called an adaptation  Adaptations are inherited from previous generations.

Living Creatures EVOLVE  The gradual change in a species through adaptations over time is evolution.

Living Creatures Practice INTERDEPENDENCE  Living organisms interact with each other through symbiotic relationships, or predator-prey relationship in various ecosystems.

Living Creatures Practice INTERDEPENDENCE  The environment will determine what organisms will live there and how they will interact.