What is an Ecosystem?

What is the Population of an Ecosystem?

What is the Community of an Ecosystem?

What is Interdependence?

What are Biotic Factors?

What are Abiotic Factors?

What are some Examples of Abiotic Factors?

What are some Examples of Biotic Factors?

What are Pollutants?

What are the Major Effects of Climate Change?

What is Adaptation?

core practical quadrats in...

What is the Equation for Estimating Population using a Quadrat?

Where does Biomass' Energy come from?

What is a Trophic Level?

Why is there a Limit to Food Chain Length?

Why is only ~10% of Biomass Transferred Between Trophic Levels?

What is a Pyramid of Biomass?

What is the Equation for Efficiency of Energy Transfer?

What is Parasitism and how is it Different to most Feeding Relationships?

Why is Parasitism a + / - Relationship and what is Mutualism?

What is Fish Farming and its Aim?

What are some Problems with Fish Farming?

What is the Introduction of (Non-Native) Species and its Aim?

What are some Problems with the Introduction of (Non-Native) Species?

What is Eutrophication?

Why is Conserving Biodiversity Important?

What is Conservation?

How does Deforestation affect Biodiversity?

What is Reforestation?

What is Breeding in Captivity?

What are Indicator Species?

What 2 Types of Pollution can Indicator Species be used to Show the Impact of?

How can Levels of Pollution be Measured without Indicator Species?

What type of Pollution do Blackspot Fungi Indicate and how?

What type of Pollution do Blood Worms Indicate and how?

What type of Pollution do Freshwater Shrimp Indicate and how?

What type of Pollution do Lichen Indicate and how?

What type of Pollution do Sludgeworms Indicate and how?

What type of Pollution do Stonefly Larvæ Indicate and how?

What is Food Security?

How has Food Security Changed in Recent Years?

How has the Increased Consumption of Meat / Fish and Animal Farming Affected Food Security?

How have the Environmental Changes caused by Human Activity Affected Food Security?

What happens in the Water Cycle?

How is Drinking Water Produced in areas of Plentiful Water?

How is Drinking Water Produced in areas of Drought?

How is Nitrogen Absorbed by Plants and why?

Why is Nitrogen Important Biologically?

How does Lightning Contribute to the Nitrogen Cycle?

How do Decomposers Contribute to the Nitrogen Cycle?

How does Denitrifying Bacteria Contribute to the Nitrogen Cycle?

How does Nitrogen-Fixing Bacteria Contribute to the Nitrogen Cycle?

How can Farmers use Crop Rotation to gain Additional Nitrates without Fertiliser

What is Decomposition?

What does Food Preservation Rely on?

What is Composting?

How are the following Factors Controlled during Composting:
Temperature
Oxygen Levels
Water Content

How do you Calculate the Rate of Decomposition?