Ecosystem Dynamics and Food Chains

The video explains the concept of food chains and food webs, highlighting the interdependence of organisms in an ecosystem. It discusses the roles of producers, consumers, and decomposers, and the impact of disruptions in the food chain. The importance of conservation and the potential consequences of species extinction are also emphasized.

What is the primary role of plants in a food chain?

• To produce their own food using sunlight

• To decompose organic matter

• To consume other organisms

• To act as scavengers

What might happen if all shrimp in a lake were removed?

• The fish that eat shrimp would decrease

• The fish population would increase

• The lake would become cleaner

• The bears would have more food

How do food webs differ from food chains?

• Food webs do not include decomposers

• Food webs only include producers and consumers

• Food webs consist of multiple interconnected food chains

• Food webs are simpler than food chains

What is the main source of energy for producers?

• Air

• Soil

• Sunlight

• Water

Which of the following is a primary consumer?

• A fish that eats shrimp

• A herbivore

• A plant

• A bear

Which type of consumer eats both plants and animals?

• Herbivore

• Carnivore

• Omnivore

• Decomposer

Which of the following is a secondary consumer?

• A herbivore

• A plant

• A decomposer

• A carnivore

What is the role of decomposers in an ecosystem?

• To act as primary consumers

• To break down dead matter and recycle nutrients

• To consume other organisms

• To produce food using sunlight

What is a potential consequence of a species becoming extinct?

• No impact on the ecosystem

• Increased biodiversity

• Stability in the food web

• Environmental chaos

Why is it important to protect every species in an ecosystem?

• To increase the number of predators

• To maintain ecological balance

• To reduce the number of producers

• To eliminate decomposers