Ecosystem Roles and Food Chains

The video introduces food chains and food webs, explaining their roles in ecosystems. It covers the classification of organisms into producers, consumers, and decomposers, highlighting their importance in energy flow and nutrient recycling. The video also discusses the complexity of food webs compared to food chains and provides interactive activities to reinforce learning.

What is the primary focus of the video taken at Kruger National Park?

• Interactions between lions and alligators

• Food chains and food webs

• The migration patterns of animals

• The behavior of water buffalo

Which process allows plants to produce their own food?

• Fermentation

• Photosynthesis

• Digestion

• Respiration

What term is used for organisms that consume producers?

• Decomposers

• Secondary consumers

• Tertiary consumers

• Primary consumers

Which of the following is an example of an omnivore?

• Bear

• Tiger

• Kookaburra

• Dugong

What role do detritivores play in an ecosystem?

• They break down dead organic material

• They are top predators

• They produce energy from sunlight

• They consume living plants

Why are decomposers crucial for ecosystems?

• They produce oxygen

• They recycle nutrients back into the ecosystem

• They provide shelter for animals

• They are primary consumers

In a food chain, what does the direction of the arrow represent?

• The size of the organism

• The flow of energy

• The color of the organism

• The speed of the organism

What is a key difference between a food chain and a food web?

• A food chain shows multiple feeding relationships

• A food web shows a single feeding relationship

• A food chain is more complex than a food web

• A food web is a complex network of food chains

Why is it important to have more producers than consumers in an ecosystem?

• To reduce the number of decomposers

• To increase the number of top predators

• To maintain the color balance in the ecosystem

• To ensure enough energy is available for all organisms

What happens if there are more consumers than producers in a food web?

• The flow of energy increases

• The number of decomposers increases

• The ecosystem becomes unsustainable

• The ecosystem becomes more stable