Im pretty sure it is The hips widen, The cl1toris and vulva grow, and brest buds appear, and brest grow.
Explanation:
hips widen so that a baby could potentially pass through, The cl1toris and vulva grow with the rest of your body and brest buds appear, and brest grow due to female hormones that are produced more and more as a female goes through puberty.
2,3, and i am not 100% sure but i also think 5.... when you starve your body attacks fat and muscle to use for energy until you consume some sort of calorie.