Free AP Environmental Science Tests

AP Environmental Science Full-Length Practice Exam

Multiple Choice
FRQ Question 1
FRQ Question 2
FRQ Question 3
FRQ Example 1
FRQ Example 2
FRQ Example 3

AP Environmental Science Multiple Choice Questions

The first part of our full-length APES Practice Exam features 83 multiple choice questions. These questions are scored instantly and detailed explanations are provided. Get started now to make sure you are fully prepared for the MCQ section of your AP Environmental Science exam!

Type of interactions	Species 1	Species 2
Competition	−	−
Predation	+	−
Mutualism	+	+
Commensalism	+	0

Free AP Environmental Science Tests

AP Environmental Science Full-Length Practice Exam

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AP Environmental Science Multiple Choice Questions

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1. Question

Which statement describes the primary difference between an ecosystem and a community?

2. Question

Which is an example of a commensalistic relationship?

3. Question

The type of resource partitioning in the image above is best described as:

4. Question

Using the chart above: What biome would be found with an average yearly rainfall 75 cm and an average yearly temperature of 10o C?

5. Question

Turbidity indicates which characteristic of an aquatic biome?

6. Question

Which ecosystem typically has the highest levels of biodiversity?

7. Question

Which process of the nitrogen cycle converts inert nitrogen into biologically available nitrogen?

8. Question

Phosphorus is a limiting nutrient in most ecosystems due to:

9. Question

If there are 40,000 Kg of biomass available in the producers of an ecosystem, how many Kg of biomass would you expect to find in the biomass of a secondary consumer?

10. Question

Which statement correctly describes the benefit of increased genetic diversity in an ecosystem?

11. Question

Which qualities of an ecosystem are indicators that it would likely contain high levels of biodiversity?

12. Question

This level of biodiversity involves a greater number of available niches in an ecosystem.

13. Question

The above image demonstrates which rule of island biogeography theory?

14. Question

Which statement is true about the size of islands according to the theory of island biogeography?

15. Question

Which statement about ecological range of tolerance is correct?

16. Question

The chart above shows:

17. Question

Which statement is true about adaptation?

18. Question

Which is an example of secondary succession?

19. Question

Which is an example of a pioneer species?

20. Question

Which of the following is a reason why specialist species are more likely to go extinct as compared to generalist species?

21. Question

Which statement about species reproductive strategies is true?

22. Question

Increased levels of parental care lead to which type of survivorship curve?

23. Question

Carrying capacity is best described as:

24. Question

Which best describes the population fluctuations shown in the graph above?

25. Question

Which is an example of a density dependent factor affecting population size?

26. Question

Which is the correct equation to calculate population growth?

27. Question

Which of these stacked bar population pyramids shows the most rapid population growth?

28. Question

The rule of 70 states:

29. Question

Which describes a population in the first stage of population demographics?

30. Question

The image above shows which type of plate boundary?

31. Question

Which soil horizon contains the most organic material?

32. Question

Which correctly lists the inorganic portion of soil from largest particle size to smallest?

33. Question

If soil was 80% clay what would a farmer need to do to increase permeability of the soil for his crops?

34. Question

Using the graph above identify a layer of the atmosphere that has an inverse temperature relationship?

35. Question

The ultimate source of wind patterns on the planet is:

36. Question

Using the chart above: What biome would be found with an average yearly rainfall 75 cm and an average yearly temperature of 10^oC?

Which statement about CO₂ is false?