Test ursi polari

What color is a polar bear's skin underneath its thick fur?

B. Dark grey D. White A. Black C. Pink

What is the actual color of an individual strand of polar bear fur?

A. Silver D. Pure white B. Transparent and hollow C. Pale Yellow

How far can polar bears swim without stopping in search of food or ice?

D. Theycannot swim, they only walk on ice A. Hundreds of kilometers B. A maximum of 5 kilometers C. Around 20 kilometers

What is the primary and most vital food source for a polar bear?

B. Small fish C. Seals D. Penguins A. Seaweed and marine plants

What happens when you film a polar bear with an infrared (thermal imaging) camera?

B. Their fur glows in the dark A. They are nearly invisible C. The camera malfunctions D. They show up as bright red shape

Why do polar bears never hunt or eat penguins?

D. They live on opposite poles of Earth A. Penguins are too fast in the water C. Penguins have feathers that are too tough to chew B. Penguin meat is toxic to them

How do polar bears do most of their hunting on the ice?

B. By waiting by seal breathing holes D. By digging complex tunnels under the snow A. By chasing prey down in long sprits C. By throwingblocks of ice at their prey

What major physiological challenge do polar bears face due to their dense insulation and high activity levels?

C. They suffer from show blindness during the day A. Their paws freeze in the water D. They overheat very easily B. They shed all their fur every winter

Test ursi polari

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