Adipocytes contain a fat-filled vacuole that can fill or empty, causing the cell to gain or lose volume.
Mature adipose cells do not divide to make more cells, but they can get larger. Liposuction removes adipose cells so excessive fat cannot be regained in that area.
The amount of stored fat into the cell increases.
Weight gain is accomplished by an increase in the size of existing adipocytes, not by an increase in their number. When we consume more calories than we burn, excess energy is stored in the form of triglycerides within adipocytes, causing them to enlarge. This leads to an overall increase in body weight as the size of adipose tissue expands.
The average weight of a mature Holstein bull is about 2,200lbs, while a mature cow will weigh about 1,500 lbs.
Rabbits should be at least 6 months of age and reach mature weight before you breed them. Mature weight varies with the breed of rabbit you own. Go to arba.org to see what the mature weight of your breed of rabbit is. Have a crossbreed? An average weight is about 8 to 8 1/2#.
Pugs can vary in size as adults and as puppies. Some mature pugs reach only 10lbs others easily reach 30lbs. The average weight for a pug pup that age is about 4-6 lbs.
Mature Bull ~ 1,147 kgs Mature Cow ~ 857 kgs
The size of the broiler will play a great roll in its weight.
Teens
depends on what country
between 12-24 months. All dogs mature at different rates.
Present estimates (Feb 2009) put the human population at about 6,750,000,000 (6.75 billion). Most of them (1.3 billion) live in China. If by 'mass' we mean weight, then we would have to know the average weight of humans in the world. To do this we would have to take into account the fact that (a) mature adults may have an average weight per country, but also that (b) the percentage of children in any given population will differ from that of the population of another country, and (c) that childrens' weights increase as they get older. Any statistical 'average' weight of humans will not take account of the fact that a typical population is comprised of babies, children, youths, mature adults and older persons. Therefore it is doubtful that sufficient records and data are available to compute the actual combined weight/mass of all the humans on the earth at the moment.