Final answer:
The scientist could use an experimental investigation in which different prey is offered to falcons in a controlled environment and their preferences are monitored.
Step-by-step explanation:
The investigation that the scientist could use to gather evidence relating to the topic of how falcons hunt and capture prey is option D. An experimental investigation in which the scientist offers multiple types of prey to falcons in a controlled environment and monitors which prey is most often chosen. By conducting this experiment, the scientist can observe and analyze the feeding behavior of falcons and determine which types of prey they prefer.
For example, the scientist could offer different prey items like mice, small birds, and insects to the falcons and record which prey they hunt and capture more frequently. This would provide valuable evidence on the hunting behavior and prey preferences of falcons.
Overall, option D offers a controlled experimental approach that directly investigates the relationship between prey types and falcon behavior, making it the most suitable investigation for gathering evidence on how falcons hunt and capture prey.
Learn more about investigating how falcons hunt and capture prey