Marine Animals Unit Review

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What is sustainable fishing?

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Sustainable fishing is a method of fishing that maintains fish populations and the health of marine ecosystems, ensuring that future generations can continue to harvest fish without depleting resources.

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What are mollusks?

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Mollusks are a diverse group of marine animals that include species such as clams, octopuses, and snails, characterized by a soft body and often a hard shell.

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Which marine animal is the largest and feeds on plankton?

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The right whale is the largest marine animal and primarily feeds on plankton.

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What role do sea turtles play in marine ecosystems?

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Sea turtles are considered indicator species, meaning their health reflects the overall health of the marine environment.

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What is the primary diet of a bottlenose dolphin?

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Bottlenose dolphins primarily feed on fish and squid and are known for their high intelligence.

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What is overfishing?

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Overfishing occurs when fish are caught at a rate faster than they can reproduce, leading to a decline in fish populations.

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What is ocean acidification?

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Ocean acidification is the process by which the ocean becomes more acidic due to increased carbon dioxide levels, affecting marine life, especially organisms with calcium carbonate shells.

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What are the main characteristics of marine mammals?

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Marine mammals are warm-blooded, breathe air, give live birth, and nurse their young with milk. Examples include whales, dolphins, and seals.

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What is a marine protected area (MPA)?

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A marine protected area is a section of the ocean where human activity is restricted to protect the natural environment and biodiversity.

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What are crustaceans?

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Crustaceans are a class of marine animals that have a hard exoskeleton, jointed legs, and include species like crabs, lobsters, and shrimp.