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AP Biology 4.1 Evolution. When or where is allopatric speciation likely seen?

AP Biology 2.1 Evolution. Gene flow occurs when what?

AP Biology 2.5 Evolution. These features might be anatomically similar but could have different functions.

AP Calculus 1.1 Applications and Multivariable Calculus. Which of the following is a direction field for the differential equation?

What do snickerdoodles and velocity have in common? Derivatives! No, that wasn't a bad attempt at a joke. Get on our level by watching this speedy...

AP Calculus 1.3 Derivatives. Compute the limit.

What do snickerdoodles and velocity have in common? Derivatives! No, that wasn't a bad attempt at a joke. Get on our level by watching this speedy...

AP Calculus 1.3 Derivatives. Compute the limit.

Riemann sums are a way to estimate the area under a curve. Check out the video for all the deets.

AP Chemistry 3.5 Chemical Reaction Rates. How much 85Kr will we need to collect?

Want to pull an Oliver Twist and ask us for more? We've gotcha covered. Head over to /video/subjects/test-prep/ap/ap-chemistry/ for more AP Ch...

AP Chemistry 1.3 Forming and Breaking Bonds. Which of the following ions are spectator ions?

AP Computer Science 1.3 Inheritance, Abstraction, and Polymorphism. Which of the following is true?

AP Computer Science 1.2 Program Development. Which of the following is correct?

AP Computer Science: Classes and Objects Drill 1, Problem 1. Which of the following is a correct {/* Implementation */} for the isInsect method?

E.T., phone home....or solve this Shmoopy AP Computer Science question.

AP Computer Science: Review of the Basics Drill 1, Problem 4. What is 11001 (base 2) in base 10?

APCS: Review of the Basics Drill 2, Problem 1. What is the output of the code segment?

AP English Language and Composition: Passage Drill 2, Problem 3. The subject of the passage can best be described as what?

Take a look at this shmoopy AP English Language and Composition question and see if you can figure out which answer best describes the development...

Which answer best describes the theme of the following passage? And if you say "fission chips," we'll give you half credit. The AP test graders mig...

According to the information presented in the first and second paragraph (lines 1-26), it can be reasonably inferred that the kingdom of the Luggna...

In line 27, the adjective "inexpressible" is used

The main idea of the second paragraph (lines 24-33) can best be restated that

AP European History 1.5 Period 1: 1450-1648. Machiavelli's The Prince was similar to Thomas More's philosophy because it...what?

AP European History 2.3 Period 1: 1450-1648. Which of the following was the most immediate change in Europe after the signing of the Treaty of West...

AP European History 2.2 Period 1: 1450-1648. The man portrayed in the image was previously motivated to tack the Ninety-five Theses on the doo...

AP Human Geography 1.2 Intro to Geography. The earliest geographers in the Western tradition to discover the Earth was spherical were...who?

Here's one of those "how many miles"-type math questions for you. So you may want to get our your 500-mile long tape measure.

Human Geography 4.1 Intro to Geography. The correct notation for the absolute location of the equator is...what?

AP Macroeconomics 1.1 Measurement of Economic Performance. How do we measure net Domestic Product?

AP Macroeconomics 1.2 Measurement of Economic Performance. What is inflation?

AP Macroeconomics 1.6 Measurement of Economic Performance. Which is true of the basic two sector economy in the circular flow of income model?

AP Microeconomics 1.3 Basic Economic Concepts. Which of the following is not a factor of production for Google?

AP Microeconomics 1.12 Basic Economic Concepts. What is an advantage of specialization and trade?

AP Microeconomics 1.6 Supply and Demand. What will the production possibilities curve for this economy look like?

AP Music Theory 4.1 Score Analysis. Which of the following answers is an example of compound meter?

AP Music Theory 4.2 Score Analysis. What figured bass symbol best describes the above chord?

AP Music Theory 3.4 Score Analysis. What is the key signature shown above?

We wouldn't give away the answer to this AP Physics question, not for all the joules in the crown. Come back when you've got some actual jewels. Th...

AP Physics 1: 3.3 System Interactions and Changes. What is the change in angular momentum?

You may not be able to get Einstein-o the Great at your next birthday party, but you can at least figure out his tricks. Let's find out what the ma...

AP Physics 2: 1.3 Changes and Conservation Laws. To what temperature does the aluminum sheet need to be heated in order for the square peg to fit t...

AP Physics 2: 2.1 Systems Interactions and Changes. Calculate the equivalent capacitance of the combination.

AP Physics 1.5 Systems Interactions and Changes. Which of the following statements is true?

AP Physics B: Newtonian Mechanics Section Drill 2, problem 1. What is the acceleration due to gravity for objects dropped near the surface of Europa?

AP® Physics B: Newtonian Mechanics Drill 1, Problem 3. With what acceleration does lunch arrive?

AP Physics C: Newtonian Mechanics Drill 1, Problem 1. Which of Newton's equations of motion would have to be modified to account for the airplane's...

AP Physics B: Newtonian Mechanics Section Drill 2, problem 1. What is the acceleration due to gravity for objects dropped near the surface of Europa?

AP® Physics B: Newtonian Mechanics Drill 1, Problem 3. With what acceleration does lunch arrive?

AP Physics C: Newtonian Mechanics Drill 1, Problem 1. Which of Newton's equations of motion would have to be modified to account for the airplane's...

AP Psychology 3.2 Treatment of Abnormal Behavior. SSRIs are used to treat which ailment?

AP Psychology 2.3 Testing and Individual Differences. Which factor below needs to be considered in the administration and evaluation of the attenti...

AP Psychology 2.4 Testing and Individual Differences. Which of these is an example of studies used in the nature vs. nurture debate of intelligence?

AP Statistics 3.1 Statistical Inference. Based on the numbers given, which of the following statements is true?

AP Statistics 2.5 Exploring Data. Which of the following is an example of bivariate categorical data?

AP Statistics: Exploring Data Drill 1, Problem 2. Which of the following is the best way to display this type of data?

AP U.S. Government 2.3 Constitutional Foundations. Which amendment stated that the right to vote could not be denied on the basis of race?

AP U.S. Government 1.3 Institutions of National Government. What did the Twenty-fifth Amendment do?

AP U.S. Government 3.1 Institutions of National Government. In what case did the Court hold that there was a Constitutional right to marital privacy?

AP U.S. History: Period 1: 1491–1607. Drill 1, Problem 3. Increased colonization of the New World was partly facilitated by which of the followin...

Today's lesson: The Civil War. A war may be civil, but it's never pretty. Well, aside from the Pretty Pink Fairy Wars of '93...but no one seems to...

AP U.S. History Period 1: 1491-1607 Drill 3, Problem 2. The cultivation of maize, depicted in the image, also played a significant role in which of...

AP World History 1.1 Accelerating Global Change and Realignments, c. 1900 to Present. The Treaty of Versailles placed blame for World War I on...wh...

AP World History 4.3 Industrialization and Global Integration, c. 1750 to c. 1900. What was the immediate cause of the First Sino-Japanese War?

AP World History 3.2 Industrialization and Global Integration, c. 1750 to c. 1900. The Sepoy Mutiny resulted in...what?