CAMBRIDGE INTERNATIONAL EXAMINATIONS GCE Advanced Subsidiary Level and GCE Advanced Level MARK SCHEME for the November 2003 question papers 9700 BIOLOGY 9700/01 9700/02 9700/03…

Slide 1The EU Network of Excellence MarBEF Marine Biodiversity and Ecosystem Functioning Carlo Heip General Coordinator [email protected] Slide 2 MarBEF Consortium 56 member…

Slide 1Juvenile salmon survival in coastal waters of the Northeast Pacific Ocean: top-down or bottom-up control? Vladlena Gertseva, Thomas Wainwright, Vladimir Gertsev October…

Slide 1Ecology of Meat Diet vs. Vegetarian Diet What do ecological principles tell us about availability of energy to humans? –Pyramids Summarize food chains & Trophic…

Slide 1Overfishing affects Marine Ecology Major top-down force which has led to major depletion of top predators By removing species which exert control over lower consumers,…

Slide 1Topic 2: The ecosystem How does the role of instrumentation circumvent the limitations of perception? Can environmental investigations and measurements be as precise…

1.How Do Ecosystems Work?2. Energy and Nutrient Pathways Energy moves in a one-way flow through communities within ecosystems The energy to drive life’s activities comes…

1.  2.   3.   4. Introduced Species? Impact? Growth pattern? Causes? 5. Ecology What is Ecology? What Methods are used by Ecologists? What is a Population? What Factors…

1. ECOSYSTEMS& ENERGY FLOW 2. EcosystemA community and its physical environment Made up of two essential components: Abiotic factors Biotic factors 3. Abiotic factors…

1. ECOSYSTEMS& ENERGY FLOW 2. EcosystemA community and its physical environment Made up of two essential components: Abiotic factors Biotic factors 3. Abiotic factors…