Microscopic Life in Water-B6
- Created by: Shannon
- Created on: 09-06-13 14:06
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- Microscopic Life in Water
- Living in water advantages: no water shortage/ dehydration, less variation of temperature, waste is easily disposed
- Living in water disadvantage-s: resistance of movement-water more dense than air, body water content needs to be controlled
- Fresh water- take up too much water by osmosis
- Salt water- lose water to surroundings
- Amoeba-contractile vacuole: store excess water- fuse with cell membrane and empty water
- Phytoplankto-n and zooplankton- numbers vary with depth and season
- Phytoplankto-n- less light in winter, deeper in the water, minerals are used up towards the end of the summer
- Temperature will be lower and deeper in the water
- Phytoplankto-n- less light in winter, deeper in the water, minerals are used up towards the end of the summer
- Food webs of marine life-deep life-marine snow- dead material
- Some rely on green plants, bacteria
- Sewage and fertiliser run off causes eutrophicatio-n
- Some species are more sensitive to pollution- act as biological indicators
- Untitled
- Some species are more sensitive to pollution- act as biological indicators
- Living in water advantages: no water shortage/ dehydration, less variation of temperature, waste is easily disposed
- Sewage and fertiliser run off causes eutrophicatio-n
- Some species are more sensitive to pollution- act as biological indicators
- Untitled
- Some species are more sensitive to pollution- act as biological indicators
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