Shays' Rebellion - AP® US History Crash Course

Shays’ Rebellion: AP® US History Crash Course

In the modern era, we’re accustomed to the ups and downs of the economy. In AP® US History, you’ll also learn that those ups and downs aren’t new at all. In fact, economic changes have impacted politics from the Revolutionary War era onward. During the Revolutionary War, the United States steadily accumulated debt, which eventually led to a financial crisis. At this time, the country did not have a centralized government strong or effective enough to tackle this obstacle.

When Does Cytokinesis Occur in Mitosis?

When Does Cytokinesis Occur in Mitosis?

Mitosis is the process whereby a cell reproduces asexually to produce two identical daughter cells. This occurs via nuclear division. Before mitosis, the number of chromosomes in the cell is doubled via chromosome replication, transforming the cell from a diploid (2n) cell to a tetraploid (4n) cell.

What is M1, M2, and M3 - AP® Macroeconomics Crash Course Review

What is M1, M2, and M3? AP® Macroeconomics Crash Course Review

Economists use different terms for different measures of the money supply; specifically, they will refer to M1, M2, and M3. So, what are M1, M2, and M3, and how does it apply to the supply of money? In this crash course review, you’ll find out exactly what M1, M2, and M3 are, and you’ll learn how they apply to concepts that you’re used to, such as currency or checkable deposits.

Dehydration Synthesis - AP® Biology Crash Course

Dehydration Synthesis: AP® Biology Crash Course

When you hear the word dehydration, you undoubtedly think back to the last time you felt thirsty, dizzy, and generally off after a major loss of water (and insufficient water intake). Though we typically view the word dehydration in a negative light, the concept of dehydration synthesis is extremely valuable at the molecular level.

Proteins - AP® Biology Crash Course Review

Proteins: AP® Biology Crash Course Review

Proteins, along with carbohydrates and lipids, are a type of organic macromolecule that is a fundamental building block of life. While you hear a lot about proteins in daily living – like in ads for protein shakes and protein powders– there are a few misconceptions about why proteins are important and how they work.

Devolution - AP® Human Geography Crash Course

Devolution: AP® Human Geography Crash Course

There are many serious challenges facing countries today. History shows us that those challenges can and do lead to civil unrest, protest, and armed conflict. Those challenges are rooted in history and countries (also called states) must deal with the boundaries left to them by past generations.

Gender Typing - AP® Psychology Crash Course

Gender Typing: AP® Psychology Crash Course

The AP® Psychology exam focuses not only on how adults think and act, but also how children develop and come into their own identities. A crucial part of identification is gender typing.