Question

1. which animal relies on blubber as a primary form of insulation in polar waters?

a. arctic fox
b. seal
c. penguin
d. reindeer

Explanation:

To solve this, we analyze each option:

• Arctic fox: Relies on fur, not blubber, for insulation.
• Seal: Marine mammals that live in polar waters and have a thick layer of blubber for insulation against cold.
• Penguin: Uses feathers and a layer of fat (not primarily blubber in the same way as seals) and is more adapted to cold air and water but blubber isn't their primary insulation like seals.
• Reindeer: Relies on fur for insulation.

So the animal that relies on blubber as a primary form of insulation in polar waters is the seal.

Answer:

b. Seal