Arctic Food Web Dynamics

The video explores the Arctic food web, highlighting the roles of primary producers like phytoplankton and sea ice algae, primary consumers such as krill and caribou, and secondary consumers including sea otters and arctic foxes. It discusses the impact of climate change on the Arctic ecosystem, particularly the loss of sea ice and its effects on species like polar bears. Conservation efforts by organizations to protect the Arctic are also covered.

What do krill and caribou have in common in the Arctic food web?

• They are both secondary consumers.

• They are both primary consumers.

• They are both primary producers.

• They are both tertiary consumers.

Which of the following is a primary producer in the Arctic?

• Arctic fox

• Snowy owl

• Ringed seal

• Sea ice algae

Which animal is NOT a primary consumer in the Arctic food web?

• Krill

• Arctic cod

• Lemming

• Caribou

Which of the following is a secondary consumer in the Arctic?

• Caribou moss

• Sea otter

• Arctic willow

• Orca

Why are some secondary consumers not considered tertiary consumers?

• They only eat plants.

• They are primary producers.

• They have no predators.

• They are not apex predators.

Which of the following is a tertiary consumer in the Arctic?

• Sea ice algae

• Polar bear

• Arctic fox

• Lemming

What is a significant challenge faced by animals in the Arctic due to its desert-like conditions?

• Abundance of food

• Scarcity of resources

• Excessive rainfall

• High temperatures

What is a major cause of climate change affecting the Arctic?

• Increased rainfall

• Greenhouse gas emissions

• Increased snowfall

• Decreased sunlight

How does the loss of sea ice impact primary producers in the Arctic?

• It causes them to become secondary consumers.

• It has no effect on them.

• It increases their population.

• It leads to a decrease in sea ice algae.

What is one effect of the loss of tertiary consumers in the Arctic?

• Increased population control

• Unchecked food web

• More primary producers

• Less competition for resources