Passage 1 · Science Quiz 1
Green anoles and brown anoles (2 species of reptiles) behave differently when the species are together in a habitat than when the species are in separate habitats. Table 1 lists the anole species present in each of 3 habitats (Habitats X, Y, and Z).
Table 1| Habitat | Anole species present: |
|---|---|
| X | green only |
| Y | green and brown |
| Z | brown only |
Figure 1 shows, for each anole species, the average perching height in a habitat.
Figure 1Table 2 lists the number of times each of Behaviors 1–4Behaviors 1 through 4 was displayed by the anoles in a habitat. Green anoles display Behaviors 1–3Behaviors 1 through 3 only; brown anoles display Behavior 4 only.
Based on Figure 1, for green anoles, the difference in average perching height between Habitat X and Habitat Y was closest to which of the following?
Correct answer: H
Explanation
F. Incorrect. Perhaps you compared the average perching heights for brown anoles in Habitats Y and Z.
G. Incorrect. Perhaps you compared the average perching height for green anoles in Habitat X with that of brown anoles in Habitat Y.
H. Correct. According to Figure 1, green anoles had an average perching height of approximately 0.9 m in Habitat X and approximately 1.6 m in Habitat Y. The difference between 1.6 m and 0.9 m is 0.7 m.
J. Incorrect. Perhaps you compared the average perching height for green anoles in Habitat Y with that of brown anoles in Habitat Y.
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