Ecosystem Interdependence and Food Chains

This video by Mightin School Science covers the roles within an ecosystem, including producers, consumers, and decomposers. It explains the differences between food chains and food webs, highlighting how energy moves through an ecosystem. The concept of interdependence is discussed, emphasizing the mutual reliance of organisms within an ecosystem. The video also explores the consequences of changes within a food web, such as the impact of pesticides on caterpillars and the resulting effects on other species.

What are the main topics covered in this video?

• Photosynthesis and plant growth

• Food webs, food chains, and interdependence

• Climate change and its effects

• Animal behavior and habitats

Which of the following is a producer in an ecosystem?

• A lion

• A mushroom

• A green plant

• A spider

What role does a decomposer play in an ecosystem?

• Breaks down dead material

• Competes for resources

• Produces its own food

• Consumes other organisms

In a simple food chain, what does a caterpillar represent?

• Secondary consumer

• Primary consumer

• Producer

• Decomposer

How does energy flow in a food chain?

• From consumers to producers

• From decomposers to consumers

• From producers to consumers

• From consumers to decomposers

What is a key difference between food chains and food webs?

• Food chains are more complex

• Food webs show multiple connections

• Food chains include decomposers

• Food webs are linear

In a food web, what can a blackbird eat?

• Only ladybirds

• Only grass

• Only caterpillars

• Caterpillars, spiders, and ladybirds

What does interdependence in an ecosystem mean?

• Organisms share the same habitat

• Organisms live independently

• Organisms rely on each other to survive

• Organisms compete for resources

What might happen if caterpillars are removed from a food web?

• Ladybird population will increase

• Spiders and blackbirds may lack food

• Producers will decrease

• The ecosystem remains unchanged

Why is interdependence important in an ecosystem?

• It ensures competition

• It increases isolation

• It reduces biodiversity

• It maintains balance