DNA molecule was instrumental in the formulation of the modern cell theory.
1. Hind limbs tend to be sturdier, longer, stronger.
<span>2. The hind limbs are more firmly attached to the spine than are the forelimbs.</span>
Chemically straightening hair changes the shape of disulfide bonds, which alpha keratin protein; this is the second protein structure. However, as the hair continues to grow out, this keratin protein grows with it, thus outlasting the effects of the chemicals which change the shape of the protein.
I think it's <span>"Rock fragments tumble in the water, wearing away material that is softer than they are."
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