chap 3 Vocab Flashcards
part of Earth in which life exists including land, water, and air or atmosphere
biosphere
scientific study of interactions among organisms and between organisms and their environment
ecology
a group of similar organisms that can breed and produce fertile offspring
species
group of individuals of the same species that live in the same area
population
assemblage of different populations that live together in a defined area
community
all the organisms that live in a place, together with their nonliving environment
ecosystem
any living part of the environment with which an organism might interact
biotic factor
physical, or nonliving, factor that shapes an ecosystem
abiotic factor
thin layer of gases that surround Earth
atmosphere
all of the water–salt water and fresh water, in the form of liquid, ice, or vapor–above and below Earth’s surface and in the atmosphere
hydrosphere
all of the rock at and below Earth’s surface
geosphere
a group of ecosystems that share similar climates and typical organisms
biome
biome with long cold winters and a few months of warm weather; dominated by coniferous evergreens; also called boreal forest
taiga
layer of permanently frozen subsoil found in the tundra
permafrost
ecosystem in which water either covers the soil or is present at or near the surface for at least part of the year
wetland