How to Get From Ramp to Chicago

Early explorers said that local tribes referred to the place as Chicago, which was from the abundance of leaks and ramps that grew along nearby waterways. This name comes from the Algonquin word that means striped skunk or onion. The correct answer is Keystone species. Robert Payne introduced this term in 1969 that describes a species on which other species in an ecosystem drastically depend on.