Orchids are a recently evolved plant that have a novel feature known as aerial roots. What is the most likely function of an orchid's specialized roots? Aerial roots are the site of energy synthesis. Aerial roots allow the orchid to attach itself to trees. Aerial roots produce food for the orchid through photosynthesis. Aerial roots anchor the orchid to the ground.

Aerial roots allow the orchid to attach itself to trees

Explanation:

Orchids are a group of plants that are mostly epiphytic in nature i.e. depends on other plants for physical supports. According to this question, orchids have evolved to develop a novel feature called AERIAL ROOTS.

This specialized kind of roots serves different functions in the orchid plants but however, the most likely is for PHYSICAL SUPPORT. The orchids use their developed aerial roots to climb and attach itself to their tree host in order for them to reach sunlight.