B4
- Created by: Wymer-7
- Created on: 28-04-14 18:36
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- B4
- Ecology in the Local Environment
- An ecosystem includes all living things and their surroundings
- An organisms home is its habitat
- A community is made up of the organisms living there
- A population is the particular amount of organisms in a community
- An ecosystem includes all living things and their surroundings
- An organisms home is its habitat
- Native ecosystems have wider biodiversity than artificial ecosystems
- Capture-recapture data can be used to calculate a population size estimate
- This assumes: no deaths occur, identical sampling methods, survival rates not affected
- An ecosystem includes all living things and their surroundings
- Photosynthesis
- Photosynthesis is a two part process
- Light energy splits oxygen gas and hydrogen ions
- Carbon dioxide gas combines with the hydrogen to make glucose and water
- Carbon dioxide light and temperature are limiting factors
- The symbol equation is 6CO2+6H2O---C6H12O6+602
- Leaves are adapted for efficient photosynthesis- large surface area, thin and have guard cells
- Photosynthesis is a two part process
- Diffusion and Osmosis
- Diffusion is the movement of gas from high concentration to low concentration
- The rate is increased by shorter distance a greater concentration gradient
- Osmosis is the tansfer of water from a high concentration to a low
- Transpiration is the evaporation and diffusion of water from leaves
- Minerals and Farming
- Organic farming uses manure, crop rotation weeding and different planting times
- Untitled
- Ecology in the Local Environment
- Minerals are absorbed by active transport
- Minerals and Farming
- Organic farming uses manure, crop rotation weeding and different planting times
- Untitled
- Minerals and Farming
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