who lives where?
all populations in one area?
Community
the cycle with no gas/atmospheric phase
phosphorus cycle
percent of energy lost as heat between levels
90%
this term describes water evaporating from the leaves of plants into the atmosphere
transpiration
one benefits, one is unaffected
Commensalism
bacteria converting N2 into ammonia
nitrogen fixation
organisms at the bottom of every pyramid
producers
these fresh water biomes are characterized by standing water and include zones like the littoral and limnetic
lake
using resources at different times or places
resource partitioning
plant process that pulls CO2 from the air
photosynthesis
Formula: GPP- respiration=______
NPP
where fresh water meets salt water
estuary
species critical to food web stability
keystone species
water moving into soil and aquifiers
infiltration
total rate of photosynthesis in an area
GPP
what is a littoral zone?
nutrients- algal bloom- low oxygen
one benefits, one is harmed
parasitism
burning oil/coal that releases CO2
combustion
high primary productivity usually leads to ecosystem with high amounts of this "b" word representing total organic mass
biomass
this happens when too much nitrogen or phosphorus enters a pond, leading to algae bloom and a dead zone
eutrophication