GCSE AQA Ecosystem and Community Quiz

What are the different levels of organization in an ecosystem?

• Individual organisms to the whole ecosystem

• Cells to tissues

• Organs to organ systems

• Populations to communities

What is the term for the interaction of a community of living organisms with their environment?

• Biotic interaction

• Abiotic interaction

• Ecosystem

• Habitat

What is the significance of a stable community?

• It allows for constant change

• It maintains balance in population sizes

• It eliminates competition

• It reduces the need for resources

What factors do organisms compete for in a habitat?

• Unlimited resources

• Factors like food, mates, and territory

• Isolation from other species

• Constant environmental change

What is the relationship between producers and primary consumers?

• Producers eat primary consumers

• Primary consumers eat producers

• They are unrelated

• They compete for resources

What happens to predator and prey numbers in a stable community?

• They remain constant

• They rise and fall in cycles

• They decrease steadily

• They increase steadily

What is the purpose of measuring the population size of a common species in a habitat?

• To investigate the effect of a factor on the distribution of the species

• To determine the age of the species

• To calculate the growth rate of the species

• To identify the species' predators

What environmental changes affect the distribution of species in an ecosystem?

• Temperature, availability of water, composition of atmospheric gases

• Light intensity, soil type, wind speed

• Humidity, altitude, soil pH

• Salinity, pressure, magnetic fields

What are the types of changes that can affect ecosystems?

• Seasonal, geographic, or caused by human interaction

• Only seasonal changes

• Only geographic changes

• Only human-caused changes

What is the effect of reintroducing field margins in agricultural areas?

• It reduces biodiversity

• It supports biodiversity

• It increases pesticide use

• It decreases crop yield