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Lecture

Lecture 3

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Department
Biology
Course
BIOLOGY 2F03
Professor
Jurek Kolasa
Semester
Fall

Description
Life on water Chapter 3What is different Density oxygen light no H20 shortage pressure compared to life on landHow much water71 of Earth in which 97 from oceans 2 from glaciers freshwater 1 1 out of five Baikal 1 out of 5 GL 1 out 5 Rift Valley lakesHow deep is the ocean 4000 m on averageLatitude and LongitudeWind influences currents and these currents bring cold or warm water see imageLife in water Oceanic zonesExponential loss of light drop in oxygen temperature The light reaches only a certain amount of distance see image which prevents photosynthesis from occurring as you go down the oceanDrop in oxygen Drop is reversed in greater depth sometimes more oxygen in deeper water due to circulation but usually more oxygen in surface water and oxygen decreases as you go downOpen water and bottom habitats the habitats change as you go down M
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