The answer is B.- Upright bipedal walking posture.
The mammoth is the most commonly known animal that lived during the Ice Age but is extinct today.
This might help: https://www.livescience.com/51793-extinct-ice-age-megafauna.html
Answer:
Green leaves have water wich makes them hard to burn
Explanation:
Dry leaves have no relaining water in them, whick makes them very succeptible to fire, whereas the green leaves are green and therefore still have water in them. This presence of water makes them more resistant to fire.
I would chose the 4th one because biome is made up of a bunch of little biospheres