Antarctic Ecosystem and Adaptations

The video explores the cold climate of Antarctica, explaining why it remains icy year-round. It highlights the unique adaptations of penguins, such as their flippers and feathers, which help them thrive in the harsh environment. The video also delves into the marine ecosystem, discussing how animals like seals and krill survive in the freezing waters through adaptations like blubber and antifreeze blood.

Why is Antarctica cold even during the summer?

• Due to the presence of polar bears

• Due to the Earth's tilt and the angle of sunlight

• Because it is located at the Earth's equator

• Because it is surrounded by warm oceans

What makes Antarctica a desert?

• Its lack of vegetation

• Its high temperatures

• Its sandy terrain

• Its low precipitation

Which of the following animals is NOT found in Antarctica?

• Emperor penguins

• Leopard seals

• Elephant seals

• Polar bears

What is the main reason polar bears do not live in Antarctica?

• They are herbivores

• They are native to the Arctic

• They prefer warmer climates

• They cannot swim

What adaptation helps penguins swim efficiently?

• Their sharp beaks

• Their ability to fly

• Their flippers

• Their long legs

How do penguins keep warm in the cold ocean?

• By staying on land

• With their thick feathers

• By wearing scarves

• With their long tails

What is a unique feature of notothenioid fish?

• They live on land

• They have antifreeze in their blood

• They can fly

• They have blubber

What adaptation helps seals stay warm in cold waters?

• Their sharp teeth

• Their long tails

• Their blubber

• Their ability to fly

What is the primary role of krill in the Antarctic ecosystem?

• They are top predators

• They are a key food source for many animals

• They clean the ocean floor

• They produce oxygen

How do krill survive during food shortages?

• By shrinking and using their body parts as food

• By hibernating

• By eating each other

• By migrating to warmer waters