Question

yellowstone national park is a biosphere preserve. what does this mean?
migration routes are protected.
species can be hunted with a permit.

Explanation:

A biosphere reserve aims to protect natural habitats and ecological processes. Protecting migration routes is in line with conservation goals. Hunting species (even with a permit) goes against the main purpose of a biosphere reserve which is to conserve biodiversity.

Answer:

Migration routes are protected.