Join the Amoeba Sisters as they introduce the cardiac conduction system! This video mentions conductive cardiac cells (focusing on pacemaker cells) in the SA and AV nodes and discusses general steps of spontaneous depolarization. It also...

If cells and organs never talked to each other, an animal would fall apart faster than a boy band after the popular one goes solo. Thankfully, that’s where the nervous and endocrine systems come in! In this episode of Crash Course...

US states are using algorithms to figure out whether people are eligible for public benefits and how much care they should receive. But it isn't without its problems. For example, in Arkansas a combination of design decisions and...

Howcast - Learn about Joe Vena of NYC's Children's Museum of the Arts, one of Howcast's stop motion animation experts, in this video.

Pupil outcome: I can understand that the UK is affected by weather hazards and that there is evidence that weather is becoming more extreme. Key learning points: - The weather in the UK can be hazardous. - The UK is affected by a number...

When you think about the body’s infrastructure, you probably think of bones. But what about the heart, the blood vessels, and the lymphatic system? In this episode of Crash Course Biology, we’ll tour the cardiovascular, lymphatic, and...

Science fiction is full of superpowered mutants, but in reality, mutations are much more diverse and complex. Sometimes, they can change someone’s entire body, and other times, we don’t notice them at all! In this episode, we’ll unpack...

Howcast - Learn how to animate clouds from Joe Vena of the Children's Museum of the Arts in this stop motion tutorial from Howcast.

Paul Andersen surveys the circulatory system in humans. He begins with a short discussion of open and closed circulatory systems and 2,3, and 4-chambered hearts. He describes the movement of blood through the human heart and the blood...

Paul Andersen explains how biology is ordered in the hierarchy of life. He first of all describes how emergent properties appear as you move to more inclusive systems. The then describes life at the following levels; atom, molecule,...

Howcast - Learn the basics of puppet animation from Joe Vena of the Children's Museum of the Arts in this stop motion tutorial from Howcast.

Saving power is important, especially on mobile devices and laptops. Every CPU has a built-in feature to shut down different parts of a computer to reduce power needs. It's up to the techs to make sure the power management settings are...

If nearly all your cells have the same DNA, why are muscle cells so different from skin cells? In this episode, we’ll learn how gene expression is regulated in eukaryotes, and how methylating DNA, modifying histones, and messing with...

Join the Amoeba Sisters on this introduction to the Nervous System! This video briefly describes the division of the central nervous system (including going over some general areas of the brain) and the peripheral nervous system before...

Howcast - Learn how to animate objects growing and shrinking from Joe Vena of the Children's Museum of the Arts in this stop motion tutorial from Howcast.

In this podcast Paul Andersen explains how cells differentiate to become tissue specific. He also explains the role of transcription factors in gene regulation. The location of a cell within the blastula ultimately determines its fate....

In this program Mendel's work is explored in greater detail by using probability to make predictions of the inheritance of specific traits. The use of the Punnett Square is illustrated through easy-to-understand animations. Other...