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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