Paul Andersen introduces the concept of ethology and contrasts kinesis and taxis. He explains the importance of courtship rituals in fruit flies. He finally shows you how to use a choice chamber to study behavior in pill bugs.

Mr. Andersen describes the virtual fly lab. Software at sciencecourseware.org allows for multiple matings and statistical analysis.

Paul Andersen describes how plants and animals defend themselves against pathogens. He begins by discussing the hypersensitive response in plants as a nonspecific form of immune response. He then discusses both the humoral and...

Paul Andersen shows you how to calculate the ch-squared value to test your null hypothesis. He explains the importance of the critical value and defines the degrees of freedom. He also leaves you with a problem related to the animal...

Join Pinky and Petunia in a cell types review game! This review game focuses on comparing cell characteristics of animals, plants, fungi, "protists," archaea, and bacteria. Clues may include prokaryote/eukaryote, autotroph/heterotroph,...

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

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

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...

Why do animals do what they do? It’s a huge question, and in this episode, we’ll learn how scientists break it down. We’ll talk about the proximate and ultimate studies they use to understand animal behavior, and some of what they’ve...

When it comes to animal reproduction, there’s no one-size-fits-all strategy. Some animals need a mate, others don’t, and for some, it depends! In this episode, we’ll learn about sexual and asexual reproduction, internal and external...

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...

The world is full of microbes and viruses that can get us sick, but we’ve got an Avengers-style defense system ready to take them on. In this episode of Crash Course Biology, we’ll learn about an animal’s immune system, from their skin...

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.

Howcast - Learn about different types of scrapbooks from expert Carla Sylvester in this Howcast scrapbooking tutorial.

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

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...

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

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

A look at how to format print statements and use special characters within strings
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This clip is from the chapter "Python in-depth" of the series "Python 3: Project-based Python, Algorithms, Data Structures".This section is...

This is a brief video tutorial on the infratemporal fossa. It includes information on the TMJ.

Why do we drive on the left/right!? Subscribe - it's FREE! -='http://goo.gl/EpIDGd' taPatreon -ank' rel='nofollow'>FREE! - And please support us on Patreon - Thanks...

Explore cell signaling with the Amoeba Sisters! This introductory video describes vocabulary such as ligand and receptor. It includes the stages of cell signaling (reception, transduction, and response) and different types of signaling...

Curious about modes of nutrition? Join the Amoeba Sisters in learning about autotrophs and heterotrophs. Video explains these terms as well as how their carbon source differs. Photoautotrophs, photoheterotrophs, chemoautotrophs, and...

Explore the parts of the cell membrane with The Amoeba Sisters! Video discusses phospholipid bilayer, cholesterol, peripheral proteins, integral proteins, glycoproteins, and glycolipids - as well as why the surface area to volume ratio...