<span>She is at an increased risk of osteoporosis. Girls who first experience menarche at later ages are more disposed to having a lowered bone density and osteoporosis later in life. This is due to having a reduced peak bone mass, which can increase the risks of fracture.</span>
Cell membranes are mostly made up of lipids (fats)
Secondary succession
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The answer is Speciation cannot occur in the absence of mutation. Speciation cannot occur in the absence of natural selection
