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Themes of Biology and Evolution: Study Guide

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Introduction to Biology

  • Unicellular vs. Multicellular
    02:09
  • Introduction to Biology
    02:54
  • Introduction to Biology Channel
    1:28

Natural Selection and Evolution

  • Natural Selection Causes Adaptation
    07:48
  • Adaptation Improves Fitness
    02:57
  • Evolution can Occur Via Natural Selection
    04:32

Introduction to Evolution and Natural Selection

  • Introduction to Evolution and Natual Selection Example 1
    03:22
  • Introduction to Evolution and Natual Selection Example 2
    04:28
  • Typological vs. Population Thinking
    03:56

Natural Selection

  • Natural Selection Example 2
    05:11
  • Natural Selection: Observations and Inferences
    04:12
  • Natural Selection Example 1
    02:19

Evolution of Populations

  • Evolution of Populations Example 1
    03:33
  • Introduction to Evolution of Populations
    05:14

Genetic Variation

  • Sources of Genetic Variation
    02:16
  • Sexual Reproduction and Recombination
    05:08
  • Mutations
    06:42

The Hardy-Weinberg Principle

  • Predicting Allele or Genotype Frequencies Using Hardy-Weinberg
    03:31
  • Testing if a Population is in Hardy-Weinberg Equilibrium
    08:26
  • B. Calculating Allele Frequency from a Genotype Frequency
    03:20

Gene Flow

  • Gene Flow Example 1
    04:34
  • Gene Flow
    01:43

Genetics and Allele Frequencies

  • Allele Frequencies
    06:36
  • Mendelian and Population Genetics
    04:26
  • Genetics and Allele Frequencies Example 1
    02:56

Introduction to Speciation

  • Introduction to Speciation
    03:03

The Biological Species Concept

  • The Biological Species Concept Example 3
    02:15
  • Prezygotic Barriers
    05:18
  • The Biological Species Concept Example 1
    01:27

Allopatric and Sympatric Speciation

  • Allopatric and Sympatric Speciation
    02:46
  • Allopatric and Sympatric Speciation Example 1
    04:25
  • Allopatric Speciation
    03:53

Hybrid Zones

  • Hybrid Zones Example 1
    02:37
  • Hybrid Zones
    04:38

Origin of Life

  • Origin of Life Example 1
    03:23
  • Events that Lead to the Formation of Cells
    06:38

The Fossil Record

  • Biases in the Fossil Record
    03:17
  • Fossils
    03:54
  • The Fossil Record Example 1
    02:59

History of Life on Earth

  • History of Life on Earth Example 1
    04:53
  • Geologic Record
    07:18

Extinctions

  • Cretaceous Extinction
    04:55
  • Extinctions
    04:48
  • Sixth Extinction
    02:29

Adaptive Radiation

  • Developmental Genes & Regulation
    06:12
  • Cambrian Explosion
    05:10
  • Adaptive Radiation Example 1
    06:17