Ecology

The abundance and distribution of organisms in an ecosystem is determined by biotic and abiotic factors. Animals and plants have adaptations to allow them to compete for resources.

This interactive quiz is suitable for GCSE Biology (single science) students studying adaptations in animals and plants and their ecosystems.

The feeding relationships between organisms in an ecosystem can be seen in food chains. Sampling allows us to measure the abundance and distribution of these species.

This interactive quiz is suitable for GCSE Biology (single science) students studying ecosystems and their relationship with food chains.

Decomposition, or decay, is the breakdown of dead matter. The rate at which this happens depends upon the number of decomposing microorganisms, the temperature, and water and oxygen availability.

This interactive quiz is suitable for GCSE Biology (single science) students studying decomposition and the rate of decay under various circumstances.

Biodiversity is a measure of how many different species live in an ecosystem. Human activities like changing land use, deforestation and peat bog destruction reduce this.

This interactive quiz is suitable for GCSE Biology (single science) students studying biodiversity and the impact human activity has on it.

Feeding relationships are shown in food chains. Each stage is a trophic level. Biomass is a measure of the total mass of living material in each trophic level.

This interactive quiz is suitable for GCSE Biology (single science) students studying trophic levels in ecosystems and biomass.

Factors such as the increase in human population, new pests and pathogens, overhunting and armed conflict, can result in food scarcity in some countries.

This interactive quiz is suitable for GCSE Biology (single science) students studying food production and how various factors affect productivity.

Understanding how to approach exam questions helps to boost exam performance. Question types will include multiple choice, structured, mathematical and practical questions.