Checks and balances is the answer.
D. Great migration is called a blank lifestyle
Pretty sure its 10 feet, reply if wrong.
The correct answer is biocontrol
Biological control
An area that portrays that all species of plants and animals have natural enemies, which attack various stages of life of their targets. Among the natural enemies there are very diverse groups such as insects, viruses, fungi, bacteria, spiders, fish, amphibians, reptiles, birds and mammals.
