Could a single mutation cause spectacular physical differences and bizarre powers? Why or why not?

Which mantle is under the crust the upper mantle or the lower mantle i think it's upper let me know if i'm right

Hummingbirds drink nectar from flowers, while robins eat plant seeds. what does this reduce?

What is the importance of having the us forest service, the bureau of land management, the us fish and wildlife service, and the national park service? to manage land resources for conservation and the development of natural resources to manage land resources for conservation and the development of urban areas to preserve historical landmarks and manage the development of urban areas to preserve historical landmarks and manage the development of rural areas