22 terms

biology

STUDY
PLAY

Terms in this set (...)

weather
day to day conditions of the earths atmosphere
climate
refers to average conditions over long periods
micro-climates
environmental conditions within a small area that defers significantly from the climate of the surrounding area
greenhouse gases
carbon dioxide , methane and water vapor gases that allows light into the atmosphere and traps the heat
green house effect
allows invisible light to enter but traps heat because of the gases
tolerance
the ability to survive and reproduce under a range of environment circumstances
habitat
the general place where the organism lives
niche
describes not only what an organism does, but also how it interacts with biotic and abiotic factors in the environment
resource
refers to any necessity of life
competitive exclusion principle
no 2 species can occupy exactly at the same niche in exactly the same habitat at the exactly same time(species must compete for resources- cannot equally share- one winnner one loser)
predation
when the pedator captures and feeds on prey
hebrivory
when a herbivore feeds off of plants
keystone species
changes in the population of a specific species
symbiosis
a relationship which 2 species live closely together
mutualism
a relationship between species when both benefit
parasitism
relationships when 1 organism and harms it
commensalism
a relationship when 1 organism benefits and neither is helped/harmed
ecological succession
the change in the community over time
primary succession
occurs on a surface where no ecosystem existsed before (no soil)
secondary succession
occurs on the site where an ecosystem previously existen(soil is present
pioneer species
the first species to colonize a disturbed area
biomes
a group of ecosystems that share similar climates and typical organisms