I think this would be the environment. That's my guess
Answer:
Alpine tundra areas are found only at high elevations.
Explanation:
The arctic tundra is a specific region that covers the northernmost parts of the world from the north pole and extending south, whereas alpine tundra are found across the world at high altitudes.
Tyler has broken his sternum. The sternum is the breastbone
It is called speciation.
So it'll be D. Speciation
Hope this helped :)
