Life Interactions in Ecosystems: Exploring Biotic and Abiotic Factors

The video introduces ecology, the study of interactions between living organisms and their environment. It explains biotic and abiotic factors, and how they influence ecosystems. The video discusses different ecological scales, from individual organisms to populations, communities, ecosystems, and biospheres. It highlights the complexity and interdependence within ecosystems, emphasizing the emergent properties that arise from these interactions.

What is the primary focus of ecology?

• The study of individual organisms

• The study of chemical reactions

• The study of interactions between living and non-living things

• The study of celestial bodies

Which of the following is a biotic factor?

• Sunlight

• Bacteria

• Water

• Temperature

In a coral reef ecosystem, which of the following is an abiotic factor?

• Fish

• Coral

• Algae

• Water temperature

What term describes all the living things in a defined area?

• Community

• Ecosystem

• Population

• Biosphere

Which level of ecological scale includes both living and non-living components?

• Community

• Individual

• Ecosystem

• Population

What is the term for a fully enclosed ecosystem that includes all connected ecosystems?

• Community

• Biosphere

• Population

• Habitat

Which of the following is considered an abiotic factor that affects life on Earth?

• Bacteria

• Sunlight

• Animals

• Trees

What is an example of a human-made biosphere?

• A forest

• A coral reef

• A desert

• A space station

Which of the following is NOT a component of an ecosystem?

• Planets

• Air

• Water

• Rocks

What is the role of the Sun in Earth's biosphere?

• It is a living organism

• It provides biotic factors

• It is a source of abiotic factors

• It is part of the biosphere