This type of system has exchanges of matter and energy from outside the system
This term describes the range of abiotic and biotic conditions under which a species actually lives
site for the disposal of waste materials by burial
A group of similar individuals living in the same geographic region is called a _________
This type of population limiting factor is tied to the amount of resources available and population density
water that has percolated through a solid and leached out some of the constituents
This protocol states global emissions of greenhouse gases from all industrialized countries will be reduced to this percent below their 1990 levels by 2012
grass, grasshopper, bird, cow, human, coyote
indicates the relative content of particles of various sizes, such as sand, silt and clay in the soil
non-living chemical and physical factors in the environment which affect ecosystems
this waste property can be liquids, solids, or contained gases