Theories and LawsLaw of gravity- if you drop something it will fall to the groundOnly a description, it does not say whyTheories to explain why: Newton’s Theory of Gravity and also Einstein’s Theory of RelativityLaws described, Theories explainGravity is real, it is true, it can be observed. It can be testedEvolutionThings evolve: populations change over timeEvolution usually happens gradually: populations change over hundreds to thousands of yearsSpeciation occurs: one species splits into two or more speciesAll species share common ancestry: splitting of lineages from one ancestral formMuch of evolution change was caused by natural selection: the sole process producingadaptation, the appearance of designPredictions based on evolutionIf life originated on Earth in the distant past and then evolved, we should see evidence in thefossil recordIf evolution occurred within lineages, and those lineages sometimes split then we should seechange in species or morphology through the fossil recordIf creatures share a common ancestry, then we should see transitional formsWe should see evidence of retrodictions and vestigial characters