Simplify the following text for a Grade 11 native English-speaking person.
Original: However , the term is widely used in studies of zoological populations ( veterinary epidemiology ) , although the term ` epizoology ' is available , and it has also been applied to studies of plant populations ( botanical epidemiology ) .
Simplified: But the term is used in studies of zoological populations , although there is the term ` epizoology ' , and it has also been applied to studies of plant populations .