World Systems Crossword

the regions of the surface,atmosphere, and hydrosphere of the earth occupied by living organisms
the branch of biology that deals with the relations of organisms to one another and to their physical surroundings.
the largest group of organisms in which any two individuals can produce fertile offspring
organisms of the same species that live in a particular area at the same time, with the capability of interbreeding
an interacting group of various species in a common location
A system that includes all living organisms in an area as well as its physical environment
the living components of an ecosystem
the nonliving components of an ecosystem
the envelope of gases surrounding the planet.
all the waters on the earth's surface, such as lakes and seas, and sometimes including water over the earth's surface, such as clouds
the solid or rock portions of the planet.
the weather conditions prevailing in an area in general or over a long period.
the state of the atmosphere at a place and time