Answer: physical changes
Explanation: Physical changes are changes that do not alter the identity of a substance.
<em>hope it helped:)</em>
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I'm pretty sure this is true. Don't quote me on that lol.
I think the answer is b.) false
B. the addition of one phosphate group
It supports the weight of the upper body as it's spread across the pelvis and into the legs. It also connects the spine to the hipbones.