This ocean, the largest and deepest on Earth, covers about 30% of the planet's surface.
What is the Pacific Ocean?
These diverse ecosystems are formed by colonies of tiny animals called polyps, which secrete calcium carbonate to build their structures.
What are coral reefs?
These predators occupy the top of the marine food chain and play a crucial role in regulating the populations of other marine organisms.
What are apex predators?
This term refers to the accumulation of plastic debris in the ocean, often forming large floating patches that harm marine life.
What is plastic pollution or the Great Pacific Garbage Patch?
Sharks lack this organ, which in bony fish helps regulate buoyancy by controlling the volume of gas in their bladder.
What is a swim bladder?
This warm ocean current, famously depicted in an animated film, flows southward along the eastern coast of Australia. What is its name?
What is the Eastern Australian Current?
This process, essential for coral reef formation, occurs when coral polyps establish symbiotic relationships with algae, which provide them with nutrients and vibrant colors.
What is coral bleaching?
These tiny marine creatures are often referred to as the "grass of the sea" and are a primary food source for many marine animals.
What are plankton?
This common type of marine pollution occurs when oil is released into the ocean from sources such as spills or leaks.
What is oil pollution?
This organ, found in a shark's head, is responsible for filtering oxygen from the water and supplying it to the shark's bloodstream.
What are the shark's gills?
This ocean zone, also known as the "sunlight zone," is the top layer of the ocean where most marine life thrives due to ample sunlight.
What is the Epipelagic zone?
The largest coral reef system in the world, located off the coast of Australia, is known by this name.
What is the Great Barrier Reef?
These deep-sea creatures, found in the mesopelagic zone, are bioluminescent and use light to attract prey in the dark depths of the ocean.
What are deep-sea anglerfish or just anglerfish?
This common pollutant, found in many personal care products and industrial processes, poses a threat to marine life and ecosystems, particularly in coastal areas.
What are microplastics or nanoplastics?
This adaptation, commonly found in deep-sea fish, allows them to produce their own light.
What is bioluminescence or light production?
The midnight zone, also called the "midnight zone," is characterized by complete darkness and extreme cold. It is also known as this.
What is the Abyssopelagic zone?
Coral reefs are often referred to as the "rainforests of the sea" due to their high levels of biodiversity, with an estimated this percentage of marine species relying on coral reefs for habitat.
What is 25%?
This apex predator of the ocean, characterized by its sleek body and powerful tail, preys on a variety of marine animals, including seals and other fish.
What is the orca or killer whale?
This phenomenon, resulting from the acidification of seawater due to increased carbon dioxide absorption, poses a threat to marine organisms with calcium carbonate shells, such as corals and shellfish.
What is ocean acidification?
This adaptation, observed in many species of fish, enables them to change color and texture to match their surroundings, providing camouflage from predators.
What is camouflage or color change?
Though different in nature, ocean waves and sound waves share this characteristic, which determines their frequency and wavelength. What is it?
What is their waveform or oscillation pattern?
This human activity, involving the extraction of coral and live rock for aquariums and ornaments, poses a significant threat to coral reef ecosystems.
What is coral harvesting or coral mining?
This process, essential for the transfer of energy through the marine food chain, involves the consumption of one organism by another.
What is predation or consumption?
This category of marine pollution refers to the introduction of excessive noise from human activities such as shipping, oil drilling, and military sonar, which can disrupt marine life and lead to stress-related impacts.
What is noise pollution or acoustic pollution?
This adaptation, found in many marine crustaceans like crabs and lobsters, involves the presence of hard "armor" that provides protection from predators.
What is the hard exoskeleton or shell for protection?