Ecology (from Greek: οἶκος, "house"; -λογία, "study of") is the scientific study of the relations that living organisms have with respect to each other and their natural environment. Variables of interest to ecologists include the composition, distribution, amount (biomass), number, and changing states of organisms within and among ecosystems. Ecosystems are hierarchical systems that are organized into a graded series of regularly interacting and semi-independent parts (e.g., species) that aggregate into higher orders of complex integrated wholes (e.g., communities). Ecosystems are sustained by the biodiversity within them. Biodiversity is the full-scale of life and its processes, including genes, species and ecosystems forming lineages that integrate into a complex and regenerative spatial arrangement of types, forms, and interactions. Ecosystems create biophysical feedback mechanisms between living (biotic) and nonliving (abiotic) components of the planet. These feedback loops regulate and sustain local communities, continental climate systems, and global biogeochemical cycles.
Ah look at all the lonely people
Ah look at all the lonely people
Eleanor Rigby, picks up the rice
In the church where a wedding has been
Lives in a dream
Waits at the window, wearing the face
That she keeps in a jar by the door
Who is it for
All the lonely people
Where do they all come from?
All the lonely people
Where do they all belong?
Father McKenzie, writing the words
Of a sermon that no one will hear
No one comes near
Look at him working, darning his socks
In the night when there's nobody there
What does he care
All the lonely people
Where do they all come from?
All the lonely people
Where do they all belong?
Ah look at all the lonely people
Ah look at all the lonely people
Eleanor Rigby, died in the church
And was buried along with her name
Nobody came
Father McKenzie, wiping the dirt
From his hands as he walks from the grave
No one was saved
All the lonely people
Where do they all come from?
All the lonely people
Where do they all belong?