IB Development of Life Study Guide

This study guide key is meant to be an aid of studying.  Attempting to answer these questions/standards yourself using the blank study guide then consulting the key will be most beneficial; unless you have a photographic memory (most people do not) simply reading this will probably not result in you memorizing, trust me I tried this in college.  

Origin of Life on Earth

Read this article concerning development of first organic molecules on Earth.  It is extremely relevant and very interesting

Human Evolution

Method

Parent Isotope

Daughter Isotope

Half Life (years)

Effective Dating Range (years)

Rubidium-strontium

RB-87

Sr-87

47 billion

10 million-4.6 billion

Uranium-lead

U-238

Pb-206

4.5 billion

10 million-4.6 billion

Uranium-lead

U-235

Pb-207

71.3 million

10 million-4.6 billion

Potassium-argon

K-40

Ar-40

1.3 billion

100,000-4.6 billion

Carbon-14

C-14

N-14

5,730

100-100,000

Phylogeny & Systematics