Bozeman Science
Microevolution
Paul Andersen defines microevolution as any change in the frequency of the allele pool. He then explains the five mechanisms of evolution; small sample size, non-random mating, mutations, gene flow and natural selection.
Bozeman Science
The Three Domains of Life
Paul Andersen starts with a brief description of the history of life. He then discusses the seven characteristics of life and why viruses are not alive. He then describes the three domains in the current classification system and...
Bozeman Science
Cooperative Interactions
Paul Andersen emphasizes the importance of cooperation in living systems. He starts with a brief description of game theory and why countries at peace do better over the long term. He then explains how microscopic cells cooperate in the...
Catalyst University
Microbiology Lab | The Endospore Stain
This video covers: 1) What is a capsule? 2) Interpreting Microscope Image
Catalyst University
Microbiology Lab | The Capsule Stain
This video covers: 1) What is a capsule? 2) Interpreting Microscope Image
Catalyst University
Exercise 4: Acid-Fast, Endospore, and Capsule Stains
Exercise 4: Acid-Fast, Endospore, and Capsule Stains
Amoeba Sisters
Archaea
What is the domain Archaea? Explore the archaeans with the Amoeba Sisters! This introductory video compares and contrasts characteristics of Archaea with bacteria. Time-Stamped Table of Contents: 00:00 Intro 0:47 Extremophiles 1:00...
Howard Hughes Medical Institute
The Molecular Cascade in Bacterial Quorum Sensing
Antibiotics kill bacterial growth, but widespread use results in antibiotic resistance. Researchers wonder if quorum sensing might allow us to treat bacteria without the resistance. View an animation of quorum sensing as it regulates...
Khan Academy
Introduction to Evolution and Natural Selection
The evidence for natural selection is presented as a random variation of a characteristic allowing a particular strain of organism to survive with a higher probability of successful reproduction. Population change over a short period of...
Curated OER
Photosynthesis
Obtain a basic understanding of photosynthesis at a chemical level. The steps involved are introduced and simplified, but they are still difficult to understand. I suggest using this resource to supplement a lecture. An overview is given...