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Tuesday, September 26, 2006

Chapter 2 Ecology



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Chapter 2 - Section 2 deals with the water cycle


The Water cycle- Water cycles through the environment through a number of different processes.
Evaporation- liquid water is converted to a gaseous water and rises into the atmosphere
Condensation- Gaseous water is converted into liquid water
Transpiration- evaporation directly from plant leaves.
Precipitation- general term for water that falls from the sky as solid or liquid
Respiration- organisms breathe out gaseous water

Section 1 of Chapter 2
Chapter 2- Ecology- Many factors contribute to organism success
Vocabulary: Biotic, abiotic, atmosphere, soil, climate, evaporation, condensation, water cycle, nitrogen fixation, chemosynthesis, food web, energy pyramids

Environmental factors-
Biotic factors- “biotic” means living- features of the environment that are or where once alive.
Abiotic factors- “a” means not “biotic” means living- non-living physical features of the environment.
What’s some of the most important abiotic factors in the environment? Water and oxygen

Abiotic factors-
1) Air- the atmosphere is 78 % nitrogen, 21 % oxygen, and small amounts of Carbon dioxide, argon, neon, helium, and others.
Organisms use air for feeding body cells in a process called respiration.

2) Water- most organisms are 50-95% water. The following processes only take place with water: respiration, digestion, photosynthesis.

3) Soil- The topmost layer of the earth’s crust. Soil contains rocks, minerals, dead organisms, and air. Soil is biotic and abiotic because it contains dead and living organisms and

Chapter 2 Ecology Notes - Late Tuesday night sorry



Print and READ ME

Chapter 2 - Section 2 deals with the water cycle


The Water cycle- Water cycles through the environment through a number of different processes.
Evaporation- liquid water is converted to a gaseous water and rises into the atmosphere
Condensation- Gaseous water is converted into liquid water
Transpiration- evaporation directly from plant leaves.
Precipitation- general term for water that falls from the sky as solid or liquid
Respiration- organisms breathe out gaseous water

Section 1 of Chapter 2
Chapter 2- Ecology- Many factors contribute to organism success
Vocabulary: Biotic, abiotic, atmosphere, soil, climate, evaporation, condensation, water cycle, nitrogen fixation, chemosynthesis, food web, energy pyramids

Environmental factors-
Biotic factors- “biotic” means living- features of the environment that are or where once alive.
Abiotic factors- “a” means not “biotic” means living- non-living physical features of the environment.
What’s some of the most important abiotic factors in the environment? Water and oxygen

Abiotic factors-
1) Air- the atmosphere is 78 % nitrogen, 21 % oxygen, and small amounts of Carbon dioxide, argon, neon, helium, and others.
Organisms use air for feeding body cells in a process called respiration.

2) Water- most organisms are 50-95% water. The following processes only take place with water: respiration, digestion, photosynthesis.

3) Soil- The topmost layer of the earth’s crust. Soil contains rocks, minerals, dead organisms, and air. Soil is biotic and abiotic because it contains dead and living organisms and