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AED(د.إ)Grade 8 Ecology and Ecosystems in animated PowerPoint.
R15.18
Use, by you or one client, in a single end product which end users are not charged for. The total price includes the item price and a buyer fee.
Resource Description
- Ecology is about interactions of living things on Earth
- Four levels – population, communities, ecosystems & biosphere
- Plants, animals, people & micro-organisms are all living & are called biotic factors
- Temperature, rain, sunlight, wind & soil are non-living & are called abiotic factors
- Examples of ecosystems
- Quadratic sampling
- Transect sampling
- Feeding relationships
- Producers & consumers
- Herbivores, carnivores & decomposers
- Food chains & food webs
- Energy pyramids.
