How Ecosystems Work Crossword

organism that get their energy by eating other organisms
consumers that get their food by breaking down dead organisms
the process of breaking down food to yield energy
a sequence in which energy is transferred from one organism to the next as each organism eats another organism
shows many feeding relationships that are possible in an ecosystem
each step through which energy is transferred in a food chain
a process by which carbon is cycled between the atmosphere, land, water, and organisms
a process in which nitrogen is cycled between the atmosphere, bacteria, and other organisms
the movement of phosphorus from the environment to organisms and then back to the environment
bacteria that convert atmospheric nitrogen into ammonia
a gradual process of change and replacement of some or all of the species in a community
the type of succession that occurs on a surface where no ecosystem existed before, such as on rocks or sand dunes
the more common type of succession; occurs on a surface where an ecosystem has previously existed
the first organism to colonize any newly available area and begin the process of ecological succession
a final and stable community