I need help with the ap lang final on edge

Which term defines a power shared by state and federal governments? concurrent expressed implied reserved

Each autumn the forest floor is covered by leaves that have fallen from trees which type of organisms is most effective in decomposing the leaf tissue allowing the nutrients and minerals to be recycled in the environment?

All of the following physical reactions occur when our fight-or-flight response is triggered  except  a. dilating pupilsb. increasing heartbeatc. increasing digestiond. increasing perspiration  select the best answer from the choices providedabcd