The Albert Team 
Almost half of the world’s population live in cities, and the urban population is growing much faster than the rural population. This mass migrating into cities and urban areas is a good reason for you to know about urban dynamics. It is a fact that the form, size, and function of urban settlements is always changing.
Livestock ranching is an important agricultural process that has a significant impact on economies all over the world. In this article, we will examine what livestock ranching is, where it is most predominant, why it is so vital to a region’s economy, the challenges that it currently faces, and how it relates to the AP® Human Geography exam’s multiple-choice and free-response question (FRQ) sections.
Public opinion is a pretty simple concept, but it is important to have a proper understanding of it for the AP® US Government & Politics exam. Today, we measure public opinion mostly through polling—taking small, representative samples of the population and quizzing them about their views on political issues, public policy and candidates via neutral questions.
Have you ever wondered about those surprising traits that leave families wondering where they came from? The answers aren’t always straightforward, but the study of genetics has helped us to better understand heredity and how it works. In this AP® Biology Crash Course, we’ll discuss how heredity functions at its most basic level, and then work our way up to more complex types of inheritance.
Have you ever wondered why the 1920s are called the “Roaring Twenties?” When we hear that phrase, we often picture flapper girls with feathers and pearls, jazz musicians playing in dimly lit speakeasies, and Model-T’s rolling down brightly lit city streets. The 1920s probably felt like a non-stop party for many Americans, but did you know that it was a time of both prosperity and trouble?
As you eat food every day, you can easily feel the digestive process and the renewal of energy that results. What you can’t feel, however, are the multiple chemical processes that take nutrition from food to energy. By now, you’re likely already aware that the process of glycolysis breaks down sugars into usable products that can be chemically converted into energy. In this AP® Biology Crash Course, we’ll talk about the Krebs Cycle, the process by which those products produce ATP.
If you’re in an AP® United States History course, you’ve studied a lot of elections, and you know they’re an important piece of the APUSH exam. It can be hard to keep them all straight, but with a little bit of help, you can master the details, results, and impact of the major presidential elections. With this APUSH crash course review, we’ll look at one of the most stand-out elections in American history: the election of 1800.
This AP® Chemistry crash course review will go over the fundamentals of acid-base chemistry and its applications to the AP® Chemistry exam. There are three definitions of what constitutes an acid and a base. Each of these definitions is useful for different purposes.
With the effects of our rapidly changing climate becoming more and more apparent in our everyday life, the topic of environmental science is certainly a relevant one. As such, you may feel a bit overwhelmed about figuring out how to study for your AP® Environmental Science exam. With so much new information constantly being thrown at you from the media and even your other classes, it can feel like the amount of information is just too much. Well, hopefully, this AP® Environmental Science study plan can help you break it down into manageable bits that you can focus on, with some handy APES tips thrown in to really prepare you to get the best score you can.
Simply put, DNA (Deoxyribonucleic Acid) is a string of nitrogenous bases (Adenine, Thymine, Guanine, and Cytosine) repeated over and over, and arranged in a seemingly random fashion. Here the genetic code is contained. These bases are connected to each other through chemical bonds. Two complementary strands of DNA are bonded to each other, and are twisted in a helical structure.