Bozeman Science
Evidence of Evolution:
Paul Andersen describes pieces of evidence that Charles Darwin used to support the idea of evolution and his process of natural selection. He begins with the following evidence use in the Origin of Species; artificial selection,...
TED-Ed
TED-ED: The evolution of the human eye - Joshua Harvey
The human eye is an amazing mechanism, able to detect anywhere from a few photons to a few quadrillion, or switch focus from the screen in front of you to the distant horizon in a third of a second. How did these complex structures...
Crash Course
Community Ecology II: Predators - Crash Course Ecology
Hank gets to the more violent part of community ecology by describing predation and the many ways prey organisms have developed to avoid it.
Bozeman Science
Homeostasis Preview
Paul Andersen reviews the major components of the homeostasis. He explains how organisms respond to abiotic and biotic factors in their environment with feedback loops. He shows how responses can be behavioral or physiological.
Crash Course
Community Ecology: Feel the Love - Crash Course Ecology
Interactions between species are what define ecological communities, and community ecology studies these interactions anywhere they take place. Although interspecies interactions are mostly competitive, competition is pretty dangerous,...
Crash Course
Ecosystem Ecology: Links in the Chain - Crash Course Ecology
Hank brings us to the next level of ecological study with ecosystem ecology, which looks at how energy, nutrients, and materials are getting shuffled around within an ecosystem (a collection of living and nonliving things interacting in...
TED-Ed
TED-ED: How we think complex cells evolved - Adam Jacobson
Imagine you swallowed a small bird and suddenly gained the ability to fly - or you ate a cobra and were able to spit poisonous venom! Well, throughout the history of life (and specifically during the evolution of complex eukaryotic...
Bozeman Science
Mitosis and Meiosis Simulation
Mr. Andersen uses chromosome beads to simulate both mitosis and meiosis. A brief discussion of gamete formation is also included.
SciShow Kids
Lichen Two Living Things In One Biology for Kids
Join Jessi this week at the fort and learn about the unexpectedly awesome organism that's made up of two living things: LICHEN!
Curated Video
I WONDER - What Is A Trophic Level?
This video is answering the question of what is a trophic level.
Visual Learning Systems
Ecosystems and Food Chains
In this video students will learn how living things and nonliving things interact in ecosystems. Specific attention is given to identifying producers, consumers and decomposers. Vivid, live-action video shows these relationships in...
Professor Dave Explains
How Genetics Interacts with Biological Anthropology
Once the field of genetics was developed, our understanding of biology was completely transformed. How did this specifically impact the field of anthropology? From Mendel's laws to the Human Genome Project, let's learn about how our...
Curated Video
Amoebas: The Brainless Wonder of the Animal Kingdom
In this video, we learn about the fascinating amoeba, an organism that has been around for billions of years and functions without a brain or multiple cells. Despite its simple appearance, the amoeba showcases remarkable movement through...
Visual Learning Systems
Summing Up
In this video students will learn how living things and nonliving things interact in ecosystems. Specific attention is given to identifying producers, consumers and decomposers. Vivid, live-action video shows these relationships in...
Curated Video
Infectious
An infectious disease is one caused by a biological agent such as a virus, bacterium, or fungi, that can be passed from one organism to another. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning...
Curated Video
Eukaryote
Organisms whose cells contain complex membrane-bound structures, called organelles. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...
Curated Video
Phenotype
The observable physical and behavioural characteristics of an organism. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...
Curated Video
Microorganism
Or microbe, is an organism too small to be seen by the human eye. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce...
Curated Video
Cell cycle
The cycle of events involved in normal cell growth and division, in multicellular organisms. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...
Curated Video
Gamete
A reproductive cell, such as a sperm or egg cell. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract...
Curated Video
Mitosis
The process by which cells can divide to produce two genetically identical cells. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary...
Curated Video
Amino acid
The building blocks of proteins and polypeptides. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract...
Curated Video
Fertilisation - Fusion of Sex Cells
The fusion of two sex cells to create a new organism. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract...
Curated Video
Clone
A genetically identical copy of a piece of DNA, or an entire organism. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...