Beavers Modify Their Habitat by Building Dams, Which Create Wetlands

question 174

Multiple Choice

Beavers modify their habitat by building dams, which create wetlands, meadows, and ponds for themselves and other species.Humans also alter habitats, clearing forests and grasslands for agriculture and urban development.Beavers and humans can be considered both

• A) ecosystem engineers and keystone species.
• B) predator species and ecosystem engineers.
• C) primary producers and foundation species.
• D) decomposers and ecosystem engineers.
• E) keystone species and primary producers.