Ecosystem Components and Energy Flow

The video introduces ecology, the study of relationships between living organisms and their environment. It covers key concepts such as energy flow, mineral cycling, and the levels of organization within ecosystems, including species, population, community, and ecosystem. The video also explains the components of ecosystems, distinguishing between abiotic and biotic factors, and describes the roles of producers, consumers, and decomposers in the food chain.

What is the primary focus of ecology?

• The study of relationships between living organisms and their environment

• The study of non-living components

• The study of human impact on technology

• The study of ancient civilizations

Which of the following is true about energy flow in an ecosystem?

• Energy cycles through the ecosystem

• Energy flows in a linear path and does not recycle

• Energy is created and destroyed

• Energy remains constant at all trophic levels

What is the correct order of ecological organization from smallest to largest?

• Community, Population, Species, Ecosystem

• Species, Population, Community, Ecosystem

• Ecosystem, Community, Population, Species

• Population, Species, Ecosystem, Community

Which of the following is an abiotic component of an ecosystem?

• Plants

• Animals

• Bacteria

• Sunlight

Which of the following is an example of a biotic component?

• Mushroom

• Wind

• Soil

• Water

What term describes organisms that can produce their own food?

• Consumers

• Autotrophs

• Decomposers

• Heterotrophs

Which of the following is a primary consumer?

• Tiger

• Rabbit

• Fox

• Eagle

What role do decomposers play in an ecosystem?

• They produce energy from sunlight

• They consume autotrophs

• They are top predators

• They break down dead material and recycle nutrients

What is the main difference between autotrophs and heterotrophs?

• Autotrophs depend on others for food, while heterotrophs make their own food

• Autotrophs make their own food, while heterotrophs depend on others for food

• Both make their own food

• Both depend on others for food

Which of the following is a tertiary consumer?

• Rabbit

• Fox

• Tiger

• Grass