Shared Flashcard Set

Details

Biosphere
NA
49
Biology
12th Grade
04/26/2011

Additional Biology Flashcards

 


 

Cards

Term
Tropical Rain Forest
Definition
High T and heave rainfall
Term
Savannas
Definition
tropical grasslands with scattered trees, High T and less rain
Term
Temperate grassland
Definition
low T
Term
Temperate deciduous forest
Definition
warm summer, cold winter and moderate precipitation
Term
Desert
Definition
Hot and dry
Term
Taigas
Definition
cold winter, snowfall. coniferous forest
Term
Tundra
Definition
cold winter ground freezes. Deeper soil remains permanently frozen.
Term
Marine Biome
Definition
Largest,most stable, not subjected to severe climate changed, problems of food, water supply, fire and human activities.
Term
lentic ecosystem
Definition
Still water(lake pond or swamp)
Term
lotic ecosystem
Definition
running water(river,stream,spring)
Term
population
Definition
all individuals of a particular species
Term
community
Definition
all population of organisms occupying area
Term
ecosystem
Definition
any natural unit that includes a community of organisms and their complex environmental factors. Functional self-contained unit.
Term
Abiotic component
Definition
rocks and soil,humus organic matter,light,temperature, water,wind
Term
pedology
Definition
study of soil
Term
photoperiodism
Definition
the functional or behavioral response of an organism to changes of duration in daily, seasonal, or yearly cycles.
Term
poikilothermous
Definition
cold blooded(fishes, amphibians, reptiles)
Term
homoeothermic
Definition
warm blooded- birds and mammals
Term
biotic components
Definition
autotrophs, heterotrophs
Term
heterotrophs are split into two categories
Definition
consumers, decomposers.
Term
ecological niche
Definition
is a term describing the relational position of a species or population in its ecosystem to each othe
Term
biogeography
Definition
the study of the past and present distribution of individual species.
Term
radiant energy is the
Definition
ultimate source of energy, energy of electromagnetic waves.
Term
trophic level
Definition
each of the successive level of energy flow in an ecosystem
Term
food chain
Definition
one organism feeds on that preceding it.
Term
pyramid of number
Definition
showing the population of each level in the food chain.
Term
pyramid of productivity
Definition
turnover of biomass at each level.
Term
pyramid of biomass
Definition
shows the relationship between biomass and trophic level by quantifying the amount of biomass present at each trophic level of an ecological community at a particular moment in time.
Term
commensalism
Definition
one benefits.other neutral
Term
parasitism
Definition
one benefits and the other harmed.
Term
Gaseous cycle
Definition
reservoir, atmosphere, hydrosphere, C,H,N,O
Term
Sedimentary cycle
Definition
reservoir is lithosphere: S and P cycles.
Term
Environmental pollution
Definition
unfavorable alteration of any part of the environment by products. Gases: C0, C02, S02,
Metals: Pb, ZN, hG
Chemical: Detergents, pesticides, herbicides
Sewage, radioactive substances.
Term
biodegradable pollutants
Definition
pollution that is rendered harmless by natural processes and so causes no permanent harm
Term
biodegradabe pollutants
Definition
pollution that is rendered harmless by natural processes and so causes no permanent harm
Term
nonbiodegradable pollutants
Definition
mercuric salts , phenols, chorlinated hydrocarbons like DDT and polychlorinated biphenyls(PCB)
Term
air pollution
Definition
unwanted particulate matter or gases produced by human activity.gaseous emissions, burning fuels like coal or petroleum.
Term
reduction smog
Definition
produced by reducing effect of S02 in the air
Term
photochemical smog
Definition
photooxidative process involving N02 and hydrocarbons.
Term
acid rain
Definition
Acid rain is a rain or any other form of precipitation that is unusually acidic, i.e. elevated levels of hydrogen ions (low pH).
Term
ozone depletion
Definition
steady decline of about 4% per decade in the total volume of ozone in
Term
Methyl isocyanate disaster.
Definition
Madhya Pradesh, India. A leak of methyl isocyanate gas and other chemicals from the plant resulted in the exposure of hundreds of thousands of people
Term
how to control air pollution
Definition
preventing formation of keeping them to min.
Term
electrostatic percipitators or fabric filters
Definition
s a particulate collection device that removes particles from a flowing gas (such as air) using the force of an induced electrostatic charge.
Term
wet scrubbers
Definition
n a wet scrubber, the polluted gas stream is brought into contact with the scrubbing liquid, by spraying it with the liquid, by forcing it through a pool of liquid, or by some other contact method, so as to remove the pollutants.
Term
cyclone separators
Definition
Rotational effects and gravity are used to separate mixtures of solids and fluids
Term
minimata
Definition
Symptoms include ataxia, numbness in the hands and feet, general muscle weakness, narrowing of the field of vision and damage to hearing and speech
Term
BOD
Definition
Biochemical oxygen demand is a measure of the quantity of oxygen used by microorganisms
Term
eutrophication
Definition
s the addition of artificial or natural substances, such as nitrates and phosphates, through fertilizers or sewage, to an aquatic system.[1] In other terms, it is the "bloom" or great increase of phytoplankton in a water body.
Supporting users have an ad free experience!