25 biosphere
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BiosphereDepartment of zoology
Shri.Siddheshwar Mahavidyalaya
Majalgaon-431131
Presented by:- Tarkasband Vaibhav
Under Guidence
:-Dr.Pr.Ingole Sir :-Pr.Naik Sir
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Bioshpere
Outer layer of earth
Capable of supporting
life
Includes the physicalenvironment
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Why Life on Earth
Water
Steady supply of energy from the sun
Suitable temperature range Major and minor elements available
Gaseous atmosphere
Gravity strong enough to hold atmosphere
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Biosphere
Atmosphere
Gaseous component
Lithosphere
Rocky component
Hydrosphere
Water component
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Atmosphere
Nitrogen 79%
Oxygen 21%
Carbon Dioxide .03%
Water vapor
Ozone layer
Reflects harmful
ultraviolet light
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Plants and Algae Produce Oxygen
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Greenhouse Effect
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1850 1875 1900 20001950 19751925
Year
temperature
carbon dioxideconcentration
0.8
0.6
0.4
0
0.2
0.6
0.4
360
340
320
300
280Tempe
rature
change
(degr e
esCe
lsius)
Carbon
dioxideconc
entratio
n
(partsp
ermillion)
0.2
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Global Warming
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Carbon Dioxide Generators
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Lithosphere
Source of minerals for
living organisms
Continents float
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Hydrosphere
Water essential for
life
Solvent to dissolve
chemicals Needed for chemical
reactions
Resists temp changes
Low viscosity
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Ice Floats
Allows life to exist in
water under the ice
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Biome
Major biotic area with
characteristic
Climate
Plant life Animal life
Grassland Biome
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Grassland Biome
10 to 40 inches of
rainfall
Grasses
Few trees Not enough water
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Bison
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Antelope
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Coyote
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Prairie Dog
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Deciduous Forest Biome
30-50 inches of rain
Oak
Maple
Beech
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White-tailed Deer
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Chipmunk
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Red Fox
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Raccoon
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Coniferous Forest Biome
Less than 40 inches
of rain
Spruce
Pine
Fir
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Moose
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Elk
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Wolf
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Tundra Biome
Less than 10 inches of
rain
Cold
Permafrost
18 inches-300 feet down
Thin soil
Short growing season
Grasses
Shrubs
Lichens
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Caribou
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Polar Bear
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Grizzly Bear
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Snowy Owl
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Wolverine
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Desert Biome
Less than 8 inches of
rainfall
Hot days and cold
nights Cactus
shrubs
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Rain Shadow
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White-Tailed Deer
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Cougar
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Black Bear
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Coyote
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Lizard
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Snakes
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Roadrunner
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Rain Forest Biome
80-100 inches of
rainfall
Constant temperature
Tall trees 1700 beetle species
found on one tree
Millions of species!
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Monkey
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Macaw
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Toucan
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Frog
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Jaguar
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Aquatic Environments
Ocean
Freshwater
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Eutrophication
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Eutrophication Experiment
Nitrogen and phosphorous added
Control
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Fish Kill
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The End