Final answer:
Aristotle's philosophy of nature is called teleological because it emphasizes that everything in nature has a purpose or end goal.
Step-by-step explanation:
Aristotle's philosophy of nature is called teleological because it focuses on the idea that everything in nature has a purpose or end goal. Aristotle believed that the nature of any single thing could be understood by answering four basic questions: material cause, formal cause, efficient cause, and final cause. The final cause, or end goal, is what makes his philosophy teleological.