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The student wants to emphasize the aim of the research study. Which choice most effectively uses relevant information from the notes to accomplish this goal? Notes: The factors that affect clutch size (the number of eggs laid at one time) have been well studied in birds but not in lizards. A team led by Shai Meiri of Tel Aviv University investigated which factors influence lizard clutch size. Meiri's team obtained clutch-size and habitat data for over 3,900 lizard species and analyzed the data with statistical models. Larger clutch size was associated with environments in higher latitudes that have more seasonal change. Lizards in higher-latitude environments may lay larger clutches to take advantage of shorter windows of favorable conditions.