Answer: living and fossil organisms evolved
Explanation:
Well, the snails probably can't live in water, so what they needed was oxygen.
well it's not A, not C and not D.
The answer is most likely B
The bobcats started lowering The amount of rabbits
There was two of the same question, but here is the answer again with a little more depth.
D - spine alignment and foot size.
It was only the late Australopiths that had an S-shaped spine. This allowed for them to be bipedal, that is, the ability to walk on two legs as we do. This is because the S-shaped spine allowed them to balance when they were standing. The late Australopiths also have shorter and less flexible toes. These smaller, but sturdier feet made pushing off the ground much easier - aiding in their bipedalism.
