WHAT MAKES SOMETHING ALIVE??

1. ALL LIVING THINGS HAVE CELLS

Single cell or multicelled

2. ALL LIVING THINGS TAKE IN ENERGY Plants: photosynthesis Bacteria: chemosynthesis Animals: Food (cellular metabolism)

3. ALL LIVING THINGS GROW AND DEVELOP

Life cycle: born, grow, die

4. ALL LIVING THINGS REPRODUCE Asexual Sexual

5. ALL LIVING THINGS EVOLVE OVER TIME Adaptation is a form of survival that

leads to the evolution of organisms

6. ALL LIVING THINGS RESPOND TO THEIR ENVIRONMENT

Maintain balance Movement Homeostasis

the ability of an organism to maintain internal equilibrium by adjusting its bodily processes

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DIVERSITY OF LIFE ON EARTH 1.8 million identified species in the

world Largest mammal: blue whale

DIVERSITY OF LIFE ON EARTH Largest plant: quaking aspen Smallest forms of life: microbes or

bacteria

LARGEST MAN VS. BLUE WHALE 1257 lbs. (571 kg) 200 tons

399037 lbs. 181380 kg