this hot humid region near the equator receives abundant rain
what is the tropical rainforest?
the study of how living organisms interact with each other and with their physical environment
what is ecology?
one organism hunts and eats another
what is predation?
organisms that make their own food
what are producers?
the occupation of a living organism
what is niche?
this biome has harsh winters: freezing temperatures, snow, ice, high winds
what is the arctic tundra
the level of ecology is characterized by its climax vegetation
what is biome?
two animals hunting for the same food source
what is competition?
consumers that eat both plants and animals
what are omnivores?
God has placed man in authority over nature to meet man's physical needs
what is dominion?
this biome is at high mountain altitudes
what is the alpine tundra?
two general categories of ecosystems
what are terrestrial and aquatic?
in this relationship, one organism is harmed while the other is helped
what is parasitism?
each step in a food chain
what is a trophic level?
the maximum population an ecosystem can support
what is carrying capacity?
this biome includes the prairies, plains, steppes, and savannas
what is grassland?
the ecological level of a group of organisms of the same species living in the same ecosystem
what is population?
in this relationship, both organisms benefit
what is mutualism?
these are on the bottom of a food chain
what are plants (or producers)
marine ecosystem where fresh water meets seawater
what is an estuary?
this biome has well defined seasons and enough precipitation to support large trees and a variety of animals
what is temperate deciduous forest?
an ecosystem's ability to endure and recover from changes
what is stability?
birds nest in trees, and the tree isn't helped or harmed
what is commensalism?
this model shows all possible feeding relationships at each trophic level
what is a food web?
the hydrologic, phosphorous, and carbon-oxygen cycles are examples of what cycles?
what are biogeochemical cycles?