Ecosystem 1.1
What is a community?
all living organisms in an area
Name 2 extreme biomes
Desert, Tundra
define salinity.
How much salt there is in a body of water, determines which species can survive & usability for drinking
(Fresh water vs. estuary vs. ocean)
Define photosynthisis.
the process by which plants and some bacteria convert light energy into chemical energy, primarily using carbon dioxide and water to produce oxygen and glucose (sugars).
define bacterial fixation.
certain bacteria that live in the soil, or in symbiotic relationship with plant root nodules convert N2 into ammonia
what is an ecosystem?
all living & nonliving things in an area (plants, animals, rocks, soil, water, air)
which biome grows the least amount of plants?
Tundra
define flow.
Determines which plants & organisms can survive, how much O2 can dissolve into water
What is Carbon sink?
reservoir that take in more carbon than it releases
define Assimilation
plants & animals taking N in and incorporating it into their body
what is a biome?
the plants and animals found in a given region (determined by climate)
how do camels survive in the desert while facing heat and low water levels?
they have water preserving traits
Name 2 fresh water bodies of water.
river, lake, creek, stream.
what is carbon Burial?
over, long, periods of time, pressure of water compresses C-containing sediments on ocean floor into sedimentary stone (limestone, sandstone) - long-term C reservoir
define Ammonification
soil bacteria, microbes & decomposers converting waste & dead biomass back into NH3 and returning it to soil
What is mutualism?
relationship that benefits both organisms (coral reef)
Why do biomes shift?
The climate
name 2 benifits of wetlands.
Stores excess water during storms, lessening floods
Recharges groundwater by absorbing rainfall into soil
Roots of wetland plants filter pollutants from water draining through
what is a fossil fuel?
coal, oil, and Nat. gas are formed from fossilized remains of org. Matter. Ex: dead ferns (coal) or marine algae & plankton (oil)
define Nitrification
conversion of NH4 into nitrite (NO2-) & then nitrate (NO3) by soil bacteria
what is Commensalism?
relationship that benefits one organism & doesn’t impact the other (birds nest in trees)
Name 6 biomes.
Tundra, desert, rainforset, grasslands, temperate forest.
What is the main thing coral needs to survive?
Algea
What is carbon extraction and combustion?
digging up or mining FFs & burning them as energy source; releases CO2 into atm.
what is Ammonia volatilization?
excess fertilizer use can lead to NH3 gas entering atm.