The word "marine" means anything that is found in, or made by, the sea.

_______________ break down dead plants and animals in the ocean, helping to release energy back into the ecosystem.

___________________ get their energy by eating other organisms.

Select all the Swimming Organisms below:

Select all the Floating Organisms below:

When water evaporates from the surface of the ocean, does that increase or decrease the salinity of the ocean water?

Which Organisim in the Food web gets its energy from the Sun?

Using the Ocean Food web, which answer gives the correct order of an ocean food chain?

Algae and other producers need a lot of sunlight to survive in the ocean. Which part of the ocean would they most likely live in?

As you go deeper in the ocean, the temperature

Which of these increases as you go deeper in the ocean?

In this photo, who is the producer?

What is the name for the group of organisms who float in the water and must have the sun to produce energy through photosynthesis? These organisms are the base of the food chain.

What is the part of the ocean where most life is found? This is also the sloping border on the continent that is below the water.

Which of the following is an ocean current that borders the east coast of the United States?

Tides are controlled by....

About how much of the Earth is covered with ocean?

Which of the following is NOT a reason why it is difficult for most animals to live in the deep sea?

Ocean currents affect the following: (Choose all that apply)

Which of the following marine organisms can be classified as producers? Choose 2
correct answers.

What part of ocean water do marine organisms depend on for survival?

Choose 4 events that can impact the level of salinity in the ocean water.

Which organism is the producer?

Many species of ocean organisms live in coral reefs. The map shows that most coral reefs are found near the equator. What does the location of coral reefs suggest about coral organisms?

Ocean water is a mixture of all the following except–

Which organisms are non-moving in the ocean?

Which organisms swim in the ocean?

Which organism floats in the ocean?

Select all that apply: Which of the following are the producers in an oceanic food web?

The most important reason that lakes and oceans have different types of animal life is that oceans have –

Which location is likely to have the greatest water pressure, the coldest temperature, and the smallest number of living organisms?

The ocean floor–

What causes the salinity in the ocean to decrease? Select 2 answers.

What causes the salinity in the ocean to increase? Select 2 answers.

Which is the best way to describe the continental shelf?

The back and forth movements caused by the gravitational pull of the moon are called

The salinity of the Mediterranean Sea is greater than that of the Atlantic Ocean. This means that, compared to the Atlantic Ocean, the Mediterranean Sea is —

Sailors long ago would catch the current off the coast of Virginia. This current would help them get to which continent?

What do the arrows on the map represent?

What is a current?

What causes tides?

Which feature of the ocean floor connects the steep walls of the continental slope to the bottom of the ocean floor?

Which part of the ocean floor is labeled "D"?

The Abyssal Plain is known for being...

An underwater mountain range that is an oceanic spreading center. Responsible for the creation of new ocean floor.

What is ocean water made of? Select all correct answers

In the sea, phytoplankton use the sun's energy to make their own food. This makes them a _________.

Select all the correct answers.

Oceans ___________

In some parts of the world, tuna are being overfished. What could this cause?

Most of the ocean floor is covered with thick layers of ______

Use the picture below to answer the question. Which of the following is closest to how deep great white sharks dive?

Use the picture below to answer this question: Which of the following best represents the abyssal plain?

This is an angler fish. This organism produces light from its rod-like flesh coming from its forehead. It uses this adaptation to lure its prey out of the dark. What inference can you make about where this marine organism lives?