Effects of the environment on organisms Flashcards
(17 cards)
population
all the ____ from the same ____ living in a _____ ____
organisms, species, particular area
community
a group of ____ in a particular ___
populations, area
ecosystem
a ____ of living organisms that ____ with _____ and their ____ ____
community, interact, each-other, surrounding environment
biomes
biomes are determined by the ____ ____ type, ___ of the area, ___ location
primary vegetation, climate, geographic
biosphere
describes the ____ of every ____ on the planet
combination, ecosystem
what are biotic factors?
living components of the environment
what are abiotic factors?
non-living components of the environment
abiotic physical features examples (3)
temperature, rainfall, wind, light intensity, humidity, soil type, water+ landforms
abiotic chemical features examples (3)
soil/water pH, salinity, availability of gases
ecologists use ___ and ___ factors to predict ___ events
biotic, abiotic, ecological
variations in ___ and ___ factors within each particular area ___ in many diverse ____ in Australia
biotic, abiotic, results, ecosystems
terrestrial environments
environments on ___
difference in ___, topography, ___ and ___ actions causes different terrestrial environments
LAND
climate, water, human
aquatic environments
____ or ____
freshwater/saltwater
example of freshwater environment (1)
lakes, ponds, swamps, springs, creeks, rivers
example of marine (saltwater) environment (1)
open seas, estuaries, saltwater lakes
selection pressures
____ agents that affect an _____’s ability to ____ in a given ____
negative pressures- ____ the occurrence of a ___
positive pressures- ____ the occurrence of a ___
external, organism, survive, environment
decrease, trait
increase, trait
selection pressures may not be ____, changes what constitutes in being a ____ adaption
constant, beneficial
