BASIC
vertebrates with a skeleton made of bone
Bony fish
one is eaten the other is preyed on
Predator-Prey Relationships
density
m/v
This defensive mechanism allows octopuses to escape predators by expelling a cloud of ink. Answer: What is inking (or releasing ink)?
Answer: What is inking (or releasing ink)?
The HMS Beagle's five-year voyage with this naturalist aboard led to the development of the theory of evolution.
Answer: Who is Charles Darwin?
The largest animal to have ever existed on Earth, reaching lengths of up to 100 feet and weights of 200 tons. Despite their enormous size, they feed primarily on tiny krill through a filtering system called baleen.
Blue whale
This zone of the ocean receives enough sunlight for photosynthesis to occur
What is the euphotic zone (or photic zone)?
lincoln index
N = (n₁ x n₂) / m₂
This phenomenon occurs when coral expels its symbiotic algae due to stress, causing it to turn white.
Answer: What is coral bleaching?
: This sunken luxury liner was discovered by oceanographer Robert Ballard in 1985, over 70 years after its tragic maiden voyage.
Answer: What is the RMS Titanic?
Apex predators with powerful jaws containing multiple rows of serrated teeth.
Great white shark
The deepest known point in Earth's oceans, this trench reaches approximately 36,000 feet below sea level
What is the Mariana Trench?
simpson index
D = 1 - (n/N)^2
This poisonous cone snail hunts fish by harpooning them with a modified tooth containing a powerful neurotoxin
What is the geographic cone snail (Conus geographus)?
This maritime disaster involved the explosion of a French munitions ship in Halifax Harbor in 1917, causing the largest man-made explosion before nuclear weapons.
Answer: What is the Halifax Explosion?
Ancient reptiles that have existed for over 100 million years.
Sea turtles
This layer of rapid temperature change separates the warm surface waters from the cold deep waters of the ocean
What is the thermocline?
This zone between 1,000-4,000 meters deep is named after the Greek word for "midnight" due to its perpetual darkness.
Answer: What is the midnight zone (or bathypelagic zone)?
Bioluminescence in deep-sea creatures often produces this color light because it travels farthest through water.
Answer: What is blue light?
This common plastic item is especially dangerous to sea turtles who mistake it for jellyfish.
Answer: What are plastic bags?
Colonial organisms composed of thousands of tiny polyps that secrete calcium carbonate skeletons.
Coral
The "abyssal plain" makes up this percentage of the ocean floor, making it the largest habitat on Earth
What is 70%
These marine mammals are known for their complex songs that can travel for miles underwater.
humpback whales
This 16th-century English explorer became the first person to circumnavigate the globe.
Answer: Who is Ferdinand Magellan? (Though technically his expedition completed it after his death)
This marine protected area established in 1975 is the world's largest coral reef marine park. Answer: What is the Great Barrier Reef Marine Park?
Answer: What is the Great Barrier Reef Marine Park?