D - spine alignment and foot size.
Late australopiths had an S-shaped spine that allowed for balance when standing. Shorter and less flexible toes made pushing off the ground much easier.
I dont have time but write about making something that can help like solar panels
1. proteins
2. essential
3. nonessential
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They are genetically identical to the parent cell.
Answer: exotic
Explanation: exotic can be thought of as “not from here”
