Earth In The Beginning. Earth formed 4.6 billions of years ago. It was a fiery ball of molten rock Climate was hot ; there was not any water Early earth was lifeless. History of Life on Earth. Series of chemical events that produced the first living cell.
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1.Variation(differences) exists within the genes of every population or species
2. Some species are better suited to survive (result of variation) and have more offspring
3. Favorable traits spread (thick fur, long beaks)
4. Species evolved from extinct organisms
What is the favorable trait in this picture?
Willow Oak= Quercusphellos
Prokaryotes & Eukaryotes
Provide food for humans and other animals
Source of medicine, dyes, cloth, paper and many productsPlantae