reefs
Are corals animals or plants?
What was the largest shark?
Megladon
How big is the deep sea?
What are the 2 major kinds of aquatic plants?
Algae and seagrass
Corals grow...
Slowly (typically less than 2 cm a year)
What are shark skeletons made out of?
Cartilage
Where is the deepest point on Earth? (Name)
The Mariana Trench
What are 3 examples of what aquatic plants provide?
oxygen, food, and shelter
Corals are built by...
Tiny animals called polyps
Pups
How many people have been to the Challenger Deep?
3
Since the 1930s, has seagrass been globally increasing or decreasing?
Decreasing. Around 7% disappears each year
How do coral reefs affect coastlines?
They act as natural barriers, they protect from storms and erosion.
What does shark skin feel like?
Sandpaper! (They have tiny teeth-like structures called placoid scales/dermal denticles, which point towards the tail and help reduce friction when the shark swims.)
What kind of light is produced by creatures in the Deep Sea?
Bioluminescence
How much of the worlds oceanic carbon can seagrass store?
18%
What is the significance of the "blue carbon ecosystem" corals are apart of?
Corals absorb carbon dioxide from the atmosphere
What do sharks go into when you flip them upside down?
Tonic immobility (a trance)
What is a major threat to the Deep Sea right now?
Deep sea mining
How many species of seagrass are there?
at least 72