No! It's just that small people are most successful at gymnastics! Well, that's as far as I know, at least
Being blind should not affect your growth rate whatsoever.
Growth hormones affect the rate at which you grow.
Yes it does affect the growth rate, depending on the branding, and particular ingredients, it can make the plant sick, or it can die.
Yes
availabilty of resources. death rate. space.
death rate birth rate
Growth hormones and Food.
blah
birth rate
No. Like hair, your nails have a set rate of growth no matter what you do or don't do. You may choose to keep them short, but they will still grow at the same rate.
The human population is growing at a fast rate. This will adversely affect the natural resources.
Zero population growth is a sign of a low birthrate. Other factors that affect population growth include a stagnant Death Rate and a low mortality age.