Question

Humans process some foods by adding chemicals to reduce harmful bacterial growth. This allows foods to be edible for longer periods of time.

Which best describes the advantages of food processing?
control of density-independent limiting factors such as disease spread
control of density-dependent limiting factors such as disease spread
control of density-dependent limiting factors such as predation
control of density-independent limiting factors such as predation

Answer 1

control of density-dependent limiting factors such as disease spread

Explanation: Disease spread is a density-dependent factor (its impact increases with host density). Adding chemicals to food reduces microbial growth and thus controls that density-dependent limiting factor.