Arctic Food Web Dynamics and Ecosystem Balance

The video explores the Arctic ecosystem, focusing on the food web structure. It highlights the roles of producers, primary, secondary, and tertiary consumers, and top predators like wolves. The interconnectedness of species is emphasized, showing how changes in one population affect others. The video underscores the importance of maintaining balance in ecosystems to prevent collapse.

What is the primary role of producers in an ecosystem?

• To consume other organisms

• To produce energy through photosynthesis

• To decompose organic matter

• To regulate the climate

Which of the following is a primary consumer in the Arctic food web?

• Jaguar

• Wolf

• Geese

• Arctic fox

What role do owls play in the Arctic food web?

• Secondary consumers

• Primary consumers

• Tertiary consumers

• Producers

Why do arctic foxes avoid hunting caribou?

• Caribou are too small

• Caribou are poisonous

• Caribou are the favorite prey of wolves

• Caribou are too fast

What happens if the population of lemmings decreases?

• Owls and ermines will thrive

• The ecosystem will remain stable

• Geese population will increase

• Owls and ermines will struggle to survive

How does the removal of arctic foxes affect the ecosystem?

• Increases jaguar population

• Decreases geese population

• Increases owl population

• Decreases wolf population

What is the main diet of herbivores in the Arctic ecosystem?

• Meat

• Plants

• Insects

• Fish

Which of the following animals is a carnivore?

• Caribou

• Geese

• Lemming

• Wolf

What is the consequence of removing herbivores from the ecosystem?

• Producers will decrease

• Carnivores will thrive

• Carnivores will struggle to survive

• Producers will increase

Why is it important to maintain balance in the ecosystem?

• To eliminate all predators

• To support both plant-eating and meat-eating animals

• To ensure the survival of only carnivores

• To prevent overpopulation of producers