AP Biology Practice Test 24

Test Information

Question 12 questions

Time 15 minutes

See All test questions

1. This structure was synthesized in the ribosome.

2. When oxygen becomes unavailable, this process regenerates NAD+, allowing respiration to continue.

3. This process leads to the net production of two pyruvate, two ATP, and two NADH.

4. This process couples the production of ATP with the movement of electrons down the electron transport chain by harnessing the driving force created by a proton gradient.

5. This process has as its products NADP+, ADP, and sugar.

6. This biome has cold winters and is known for its pine forests.

7. This biome is the driest of the land biomes and experiences the greatest daily temperature fluctuations.

8. This biome contains trees that drop their leaves during the winter months.

9. This biome contains plants whose roots cannot go deep due to the presence of a permafrost.

Questions 10-11 refer to the following information.

A behavioral endocrinologist captures male individuals of a territorial bird species over the course of a year to measure testosterone (T) levels. In this population, males may play one of two roles: (1) they may stay in their natal group (the group they were born in) and help raise their younger siblings, or (2) they may leave the natal group to establish a new territory. Use this information and the two histograms that follow to answer the following questions.

10. Testosterone level in this population may be an example of

11. What can you infer about the role of testosterone in reproduction in this species?


Which of the following is the best explanation of the results presented in the preceding graph, collected from the same population in a different year?