THE BIOSPHERE IS THE GLOBAL ECOSYSTEM. ECOLOGY STUDY OF THE INTERACTIONS AMONG ORGANISMS AND BETWEEN...

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THE BIOSPHERE IS THE GLOBAL ECOSYSTEM

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Transcript of THE BIOSPHERE IS THE GLOBAL ECOSYSTEM. ECOLOGY STUDY OF THE INTERACTIONS AMONG ORGANISMS AND BETWEEN...

Page 1: THE BIOSPHERE IS THE GLOBAL ECOSYSTEM. ECOLOGY STUDY OF THE INTERACTIONS AMONG ORGANISMS AND BETWEEN ORGANISMS AND THEIR ENVIRONMENTS.

THE BIOSPHERE IS THE GLOBAL ECOSYSTEM

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ECOLOGY

• STUDY OF THE INTERACTIONS AMONG ORGANISMS AND BETWEEN ORGANISMS AND THEIR ENVIRONMENTS

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BIOTIC FACTORS• (LIVING) • EXAMPLES:

PROKARYOTES, PROTISTS, ANIMALS,

FUNGI AND PLANTS

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ABIOTIC FACTORS

• NONLIVING• PHYSICAL AND CHEMICAL CONDITIONS

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ABIOTIC FACTORS

A. SUNLIGHTB. WATERC. TEMPERATURED. SOILE. WINDF. SEVERE DISTURBANCES

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FIVE INCREASING BROAD LEVELS

A. INDIVIDUAL ORGANISMSB. POPULATIONSC. COMMUNITIESD. ECOSYSTEMSF. BIOSPHERE

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Go to Section:

Levels of Organization

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PATCHINESS OF BIOSPHERE

• NOT UNIFORM ACROSS THE EARTH• DUE TO DIFFERENCES IN ABIOTIC

FACTORS-UNEVEN HEATING FROM SUN

VARYING CLIMATES

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UNEVEN HEATING OF EARTH’S SURFACE

RESULTS IN THREE DIFFERENT TEMPERATURE ZONES:

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TROPICS

• REGION BETWEEN 23.5°N LATITUDE AND 23.5°S LATITUDE• WARMEST AREA

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POLAR ZONES

• REGION NORTH OF ARCTIC CIRCLE- 66.5 °N LATITUDE AND REGION SOUTH OF ANTARCTIC CIRCLE-66.5 °S LATITUDE• COLDEST AREAS

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TEMPERATE ZONES• REGIONS BETWEEN THE POLAR

ZONES AND TROPICS• SEASONAL CHANGES• LESS SEVERE COLD AND LESS

SEVERE HEAT

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BIOMES• TERRESTRIAL ECOSYSTEMS THAT COVER

LARGE AREAS OF EARTHA. CHARACTERIZED BY COMMUNITIES OF

PLANTS AND OTHER ORGANISMS ADAPTEDTO ITS CLIMATE AND OTHER ABIOTICFACTORS

B. LANDSCAPES APPEAR SIMILAR BUT SPECIFIC ORGANISMS VARY IN DIFFERENT PARTS OF THE WORLD


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