UNIT 2

ECOLOGY                              BIOSPHERE                           ABIOTIC FACTORS

BIOTIC FACTORS                       POPULATION                          COMMUNITY

ECOSYSTEM                            HABITAT                             NICHE

SYMBIOSIS                            COMMENSALISM                        MUTUALISM

PARASITISM                           AUTOTROPH                           HETEROTROPH

SCAVENGER                            DECOMPOSER                          FOOD CHAIN

TROPHIC LEVEL                        FOOD WEB                            BIODIVERSITY

ACID PRECIPITATION                   OZONE LAYER                         EXOTIC SPECIES

HERBIVORE                            OMNIVORE                            CARNIVORE

BIOMASS                              LIMITING FACTOR                     SUCCESSION

PRIMARY SUCCESSION                   SECONDARY SUCCESSION                BIOME

CLIMAX COMMUNITY                     ESTUARY                             TUNDRA

PERMAFROST                           TAIGA                               DESERT

TEMPERATE FOREST                     10% RULE                            GLOBAL WARMING/ENHANCED GREENHOUSE

TROPICAL RAIN FOREST                 ENERGY PYRAMID                   

TERRESTRIAL

EXPONENTIAL GROWTH

LOGISTIC GROWTH

CARRYING CAPACITY

DENSITY –DEPENDENT FACTOR

DENSITY – INDEPENDENT FACTOR

GRASSLAND/SAVANNAH/PRAIRIE