Sever's disease or calcaneal apophysitis is usually considered to be due to damage or a disturbance in this area of growth. The two growth areas of the calcaneus can be seen on this x-ray. The smaller area to the back of the heel is normal.hat are the long term consequences of heel pain in the child (Severs disease or Calcaneal apophysitis): This condition is self limiting-it will go away when the two parts of bony growth join together-this is natural.
So, a virus must have a host cell (bacteria, plant or animal) in which to live and make more viruses. Outside of a host cell, viruses cannot function. For this reason, viruses tread the fine line that separates living things from nonliving things.
The usual temperature range needed for proper germination of seeds in a given soil type is about 41â° to 752 degrees Fahrenheit (5â° to 400â° Celsius.) Once the conditions are right, the plant inside starts to grow and get bigger. It pushes open the seed coat, a bit like a chick hatching out of an egg.