Charity has swollen glands and a bright red tongue. she has:
pneumonia
tuberculosis
scarlet fever
whooping cough

Charity has scarlet fever because having swollen glands and a red tongue are symptoms of this disease. This type of disease is caused by a steptococcusor infection, a type of bacteria that generally affects a small percentage of people who have strep throats or streptococcal skin infections. The disease can be treated with antibiotics and is considered only as a mild illness but it should be treated quickly to prevent serious long-term health problems. It usually affects 5-15 year olds where the classic symptom of the disease includes a red rash that feels rough like sandpaper. 

Why  do you think body composition focuses  on the  ratio  of  fatty tissue  to  other body tissue? why is  body composition not related  to  weight?