Tundra is a terrestrial habitat found in cold, Arctic regions, while coral reefs, mangroves, and estuaries are all marine habitats.

Coral reefs are among the most biodiverse ecosystems on Earth, supporting a wide variety of marine life, including fish, invertebrates, and algae.

Migration is the movement of marine species from one habitat to another, often over long distances, in response to seasonal changes or environmental cues.

Firefly squid are known for their ability to produce light through bioluminescence, creating a mesmerizing display in the ocean.

Decomposition is the process by which marine organisms break down organic matter into simpler substances, releasing nutrients back into the ecosystem.

Overfishing, pollution, and climate change are all major threats to marine biodiversity, leading to the decline of marine populations and ecosystems.

Marine protected areas, marine sanctuaries, and ocean reserves are all terms used to describe the process of establishing protected areas in the ocean to conserve marine ecosystems and biodiversity.

The Convention on Biological Diversity, United Nations Convention on the Law of the Sea, and International Convention for the Prevention of Pollution from Ships are all international agreements that aim to protect marine biodiversity and regulate human activities in the ocean.

Adaptation, evolution, and natural selection are all terms used to describe the process by which marine organisms adapt to changes in their environment over time.

Oysters, clams, and mussels are all filter feeders that play a crucial role in maintaining water quality by filtering large volumes of water and removing pollutants.

Reproduction, fertilization, and gestation are all terms used to describe the process by which marine organisms reproduce and create offspring.

Octopus, cuttlefish, and squid are all known for their ability to change color and texture to blend in with their surroundings, providing camouflage from predators.

Ecology, ecosystem dynamics, and food webs are all terms used to describe the process by which marine organisms interact with each other and their environment.

Electric eel, electric catfish, and electric ray are all known for their ability to generate electricity through specialized cells, creating a unique defense mechanism against predators.

Competition is the process by which marine organisms compete for resources such as food, space, and mates.