Which explorer is credited with being the "First To Sail Around The World?"

This Viking explorer landed briefly in America and was believed to be the first to discover North America:

A mixture of freshwater & saltwater is called:

About 97% of Earth's water can be found:

The study of how Earth's lithospheric plates interact is called __________.

The outermost and thinnest layer of the earth is the _______.

Which US law passed in 1972 affords protection to all marine mammals, regardless of their conservation status?

Organisms that swim against the ocean’s currents are called:

The water zone between the low tide mark and the edge of the continental shelf is called the:

The open water zone the extends beyond the continental shelf is called the:

Organisms that drift in the ocean, unable to swim against the currents are called:

Which marine ecosystem would be best for organisms that can adapt to both salt water and fresh water?

In eutrophication, excess nutrients cause ________ to bloom and overgrow coral.

Coral polyps secrete _____________ that creates the structure of the coral reef.

A _______ reef forms offshore and has a lagoon between it and the main coast.

Coral bleaching is

An individual coral body is called a:

Excess Carbon Dioxide seeps into the ocean and is causing a drop in pH. Which chemical is being created that is causing the pH drop?

The correct order of ocean zones in the aphotic zone (from surface to bottom), is:

This is the zone between high-tide and low-tide:

List the following pelagic zones in order from the surface to the bottom:

The process that occurs when concentrations of a harmful substance increases in organisms at higher trophic levels in a food chain or food web:

Which organism in this diagram would have the highest toxin concentration?

Which German scientist proposed the theory of continental drift?

The deepest part of the ocean is the:

A large system of rotating ocean currents is called a:

What is the single most important characteristic that separates Protists from bacteria and viruses?

The Study of ALGAE is called:

These are bioluminescent dinoflagellates

Which specific organism causes the Florida Red Tide?

Eutrophication is caused by:

How can an algal bloom (eutrophication) lead to a decrease in dissolved oxygen? Select all that apply.

The two critical nutrients in eutrophication are... (select two)

A new golf course is built next to a river. Over the past several months, the nitrate levels of the water in the river have been increasing. Which best explains the cause of the increasing nitrate levels?

Which deadly toxin does the dinoflagellate Alexandrium produce?

Which is FALSE concerning Marine Mammals?

Which animal belongs to the Family Otariidae?

Walruses primarily feed on:

Identify the species in the photo:

Which of the following is the true habitat of Polar Bears?

This mammal is a member of Order:

The species in the photo are members of Order:

What feature allows you to tell a Seal and a Sea Lion apart?

To what Suborder do Baleen whales belong?

Which two groups are included under Order Cetacea?

The Odontocete structure that amplifies sound during echolocation and sends the sound out into the environment:

The part of the Cetacean that receives incoming sound waves/vibrations from the environment and sends them to the inner ear:

All of the following are characteristics of "Dolphin" species EXCEPT:

Which of the following Cetacean species CANNOT echolocate?

Animals that were not intended to be caught in a fishing net are called:

The Dolphin Safe Tuna label actually means that:

Which family of Cetaceans includes the surface "Skim-Feeding Whales?"

Which anatomical structure allows sharks to breathe even if they stop swimming?

Skates are _________ and their egg cases are called __________.

Chimaeras belong to which fish Class?

Marine bony fish are what type of regulators?

The tissues of freshwater fish are saltier than the surrounding water. Therefore:

Fish that must gulp air at the surface to fill their swim bladders are called:

The bony plate that covers the gills of bony fish is called the:

Bony fish have a symmetric tail, also referred to as:

Fish scales are made of what substance?

Which scale type has a characteristic "toothed" edge?

Which of the following fish completely LACKS scales?

A fish that spends its adult life at sea, but spawns in freshwater is called:

Class Sarcopterygii includes the:

Which Class includes the "Ray-finned" fish?

Which of the following is the smallest marine mammal?