Los Habitantes de lo Profundo

The video discusses the contrast between our knowledge of space and the deep ocean, highlighting the adaptations of deep-sea creatures to extreme conditions. It addresses the impact of deep-sea fishing on these species, emphasizing the need for sustainable practices to protect marine life and ensure the future of fishing industries.

What percentage of the Earth's surface is covered by water more than 1 km deep?

• 90%

• 30%

• 60%

• 80%

How do deep-sea fish adapt to extreme pressure?

• By developing strong bones

• By increasing their body temperature

• By having minimal skeletons and gelatinous flesh

• By having gas-filled cavities

What happens to the air in a soccer ball at 1000 km deep?

• It bursts

• It expands to twice its size

• It remains the same size

• It compresses to the size of a ping pong ball and a half

Why are deep-sea fish unable to cope with modern fishing pressures?

• They have an abundance of food

• They grow and reproduce slowly

• They are not adapted to cold temperatures

• They reproduce quickly

What is the annual population replacement rate of the orange roughy?

• 25%

• 50%

• 6%

• 10%