Teacher's Pet
Passive Transport Part 1
In video games, some items go through walls while others are stopped by walls. This analogy also applies to the semi-permeable cell walls. The video explains two types of passive transport due to semi-permeable walls. It first covers...
Teacher's Pet
Cell Diversity, Shape and Size
Do stem cells tell their kids they can grow up to be anything they want to be? The video discusses the large diversity in different types of stem cells and relates how shape and size determine function.
Teacher's Pet
Using Math to Analyze Data
No one wants to be average, so mathematicians use the term mean instead of average. The video explains how to calculate the mean, how to calculate the percent error, and why this information is important. Finally, the video considers the...
Teacher's Pet
Succession
Causes of ecological succession include lava flows, receding glaciers, forest fires, and farming. The video explains both primary and secondary succession. It also describes the steps followed during a typical succession.