Micro Vs Macro Evolution Microevolution Macroevolution happens on

Micro Vs. Macro Evolution Microevolution Macroevolution � happens on a small scale (within a single population) on a larger scale of more than a single species

Life! • Origin of life • Human Evolution

4. 6 BILLION years ago

Early Earth 1 st Billion Years �Hasn’t settled down! �Lots of Energy Forms ◦ ◦ Lightning Volcanic activity Radiation Heat Energy �Almost NO OXYGEN! ◦ So no life yet!

Isn’t she perdy Life! ~3. 6 Billion Years Ago

But How Did It Happen? Soup Ingredients: �Organic molecules: ◦ amino acids ◦ nucleotides ◦ simple sugars ◦ fatty acids ◦ glycerol AKA all of the stuff to make cells Servings: Huge ocean

But Where Did The Organic Molecules Come From? Let’s experiment to find out!

Miller Uray Experiment

The Miller-Urey Experiment Miller’s famous apparatus recreating conditions of the ancient Earth. Showed that all of the key organic molecules needed for life could have been made under those conditions.

So We Proved How Life Began! NO �Proved that under the primordial soup conditions the creation of complex molecules necessary for life are possible �Suggests ways that these molecules could begin to self-organize into cells �We weren’t there!

�http: //humanorigins. si. edu/resources/intr o-human-evolution Humans changed through time

Human Evolution Video!

General Timeline of Life On Earth We are weeee little babies in terms of life on Earth

Ambam the walking gorilla