Ecological Concepts and Interactions

This video is a revision guide for the final biology topic in AQA GCC combined science. It covers key terminology, biotic and abiotic factors, sampling methods, adaptations, extremophiles, the carbon cycle, biodiversity, and human impact on the environment. The video emphasizes the importance of factual recall and provides methods for effective study and sampling techniques. It also discusses the role of photosynthesis in the carbon cycle and the significance of biodiversity in ecosystem stability. The video concludes with a call to action for further study and resources.

What is the primary focus of this revision video?

• Practical experiments in biology

• Historical developments in science

• Factual recall questions for GCSE science

• Advanced biology theories

Which term describes the interaction of living organisms with non-living parts of their environment?

• Habitat

• Community

• Population

• Ecosystem

Which of the following is NOT a biotic factor?

• Predators

• Light intensity

• Food availability

• Diseases

What is the purpose of using a quadrat in ecological studies?

• To measure soil pH

• To assess species coverage

• To test light levels

• To determine wind intensity

What is inter-specific competition?

• Competition for territory

• Competition for mates

• Competition between different species

• Competition within the same species

Which adaptation is common in polar animals?

• Nocturnal behavior

• Thick fur

• Reduced sweating

• Large ears

What is the role of extremophiles in ecosystems?

• They live in extreme environments

• They are primary consumers

• They are top predators

• They are decomposers

How is carbon removed from the atmosphere?

• By decomposition

• By combustion

• By photosynthesis

• By respiration

Which human activity is NOT contributing to biodiversity loss?

• Deforestation

• Recycling

• Quarrying

• Farming

What is a carbon sink?

• A place where carbon is released

• A place where carbon is stored

• A process of carbon emission

• A method of carbon measurement