The divergence between the two populations of Rhagoletis must have occurred very rapidly because
A) the apple tree was imported into North America with European settlement approximately 200 years ago
B) flies were imported into North America with European settlement approximately 200 years ago
C) long-distance rail transport of fruit increased only after the American Civil War (1861 -1865)
D) heavy use of gunpowder during the American Civil War (1861 -1865) led to increased mutation rates in many natural populations of plants and animals
Answer: A) the apple tree was imported into North America with European settlement approximately 200 years ago
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AP Biology
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- If a dam is built downstream and prevents salmon migration to the test sites, which of the following most accurately predicts the impact on nitrogen influx?
- Which of the following pieces of additional data would help further investigate the relationship between bears, salmon, and influx of nitrogen into the local environment?
- Which of the following most likely describes how the interaction between bears and salmon influences nitrogen dynamics in the environment?
- Which of the following statements is best supported by the data?
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