Hello-Biology
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- What is the ultimate source of energy in an eco-system?
- The sun
- Producers provide what for other organisms in the food chain?
- Food, energy and oxygen
- Name one kind of energy lost to the surroundings.
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1.As heat during respiration at every trophic level
2.Through undigested matter egested by consumers
3.Through excretory products E.g. Urea from consumers - Green plants _____ photosynthesis without carbon dioxide.
- cannot
- Name one of the causes that Man affect the ecosystem.
- Flooding Of River,Deforestation
- Definte Desertification.
- Land becomes barren when too much water was evaporated rapidly form the topsoil.
- Name One pollution mentioned in the powerpoint.
-
- Water
- Air - What contributed to the large amounts of acid rain.
- The death of fish
- What is WCS?
- World Conservation Strategy
- In the past, what cuses a drop in fish stocks?
- Fishing