Janice is eleven years old and now has breast buds. next she will notice

The next sign will be "Pubic Hair".

The second indication of pubescence is the presence of pubic hair in the pubic area for most girls. Around 10 to 15 percent will create pubic hair before the breasts start to bud. At first the hair is scanty, straight and delicate, however as it fills in it winds up plainly darker, curlier and coarser. Throughout the following couple of years, the pubic hair grows up the lower stomach area, in the end going up against a triangular shape; at long last it spreads to the inward thighs. Around two years after the beginning of pubarche, hair starts to become under the arms also.

It allowed for things to be produced much more quickly and efficiently 

Sector is best defined as (part).