David Gallo: Life in the deep oceans

David Gallo and Bill Lange explore the ocean's mysteries, highlighting its vastness, biodiversity, and unexplored regions. They discuss unique ocean creatures, the mid-ocean ridge, and hydrothermal vents, emphasizing the importance of technology in ocean exploration. The video also touches on the origins of life and Earth's rhythmic cycles, advocating for conservation over preservation.

What percentage of the planet is covered by oceans?

• 75%

• 60%

• 85%

• 50%

Which creature is known to be the longest in the ocean?

• Giant Squid

• Blue Whale

• Jelly

• Great White Shark

What is the average depth of the mid-ocean ridge?

• One mile

• Half a mile

• One and a half miles

• Two miles

What is the primary energy source for life forms around hydrothermal vents?

• Geothermal energy

• Sunlight

• Chemosynthesis

• Photosynthesis

What is the temperature range of water coming out of hydrothermal vents?

• 100-200°F

• 300-400°F

• 600-700°F

• 500-600°F

What is the main component of the white material found near hydrothermal vents?

• Algae

• Coral

• Bacteria

• Minerals

How do tube worms survive without a digestive system?

• They absorb nutrients from water

• They rely on chemosynthetic bacteria

• They eat smaller organisms

• They photosynthesize

What is the pressure at the depths where hydrothermal vents are found?

• 3,000 psi

• 4,000 psi

• 2,000 psi

• 1,000 psi

What is the significance of the 'ribbon of life' mentioned in the video?

• It describes the mid-ocean ridge

• It is a type of seaweed

• It refers to the longest river

• It is a metaphor for ocean currents

What is the main message about Earth's history conveyed in the conclusion?

• Earth's history is static

• Earth's history is unpredictable

• Earth's history is rhythmic

• Earth's history is chaotic