Threats
Plastic waste in the ocean harms animals in this way.
Pollution
This fish is famous for living among sea anemones.
Clownfish
his ocean zone is affected by tides and is found along the shore.
intertidal zone
These tiny organisms produce most of the ocean’s oxygen.
phytoplankton
This factor refers to how salty ocean water is.
salinity
Catching too many fish leads to this problem.
Overfishing
This marine mammal is the largest animal to ever live on Earth.
Blue whale
This ocean zone is shallow, warm, and full of life near coastlines.
neritic zone
Organisms that make their own food using sunlight are called this.
producers
This increases as ocean depth increases.
pressure
Rising ocean temperatures cause coral to do this.
Bleach
This animal has eight arms and is highly intelligent.
Octopus
This is the largest ocean zone, far from land.
open ocean
This is the first level of every ocean food chain.
producers
This factor controls where photosynthesis can happen in the ocean.
sunlight
Protected ocean areas are called this.
Marine reserves
These animals breathe air but live in the ocean.
marine mammals
This zone receives sunlight and supports photosynthesis.
photic zone
Sharks are examples of this level in the food web.
Top predators
Warm and cold ocean currents affect this worldwide.
climate
Choosing seafood caught responsibly helps ocean biomes in this way.
Sustainability
This deep‑sea adaptation allows animals to produce their own light.
bioluminescence
This deep ocean zone has no sunlight at all.
aphotic zone
This process is used by deep‑sea organisms near vents to make food.
chemosynthesis
This refers to how warm or cold ocean water is.
temperature