Oceans

A connection between terrestrial and aquatic food webs is best exemplified by which pair of animals?

• dolphins and fish
• lions and gazelles
• pelicans and fish
• spiders and flies

Which statement best describes an estuary?

• An estuary is the extension of a continent located underwater.
• An estuary is land that is exposed at low tide and is underwater at high tide.
• An estuary is a partly enclosed body of water where a river meets the ocean.
• An estuary is a deep body of water that contains large animals.

Review the graph showing marine fishing rates.If the fishing rate in Asia continues to grow, what will most likely happen as a result?

• The fish population will continue to rise.
• The U.S. human population will decline.
• A wide range in ocean temperatures will be seen worldwide.
• The overfishing will cause an imbalance in marine ecosystems.

The diagram shows a boat using sonar to gather information in the ocean. What is most likely being measured with this technology?

• ocean depth
• ocean temperature
• pH level
• turbidity level
  

The population of photosynthetic organisms is higher in the neritic zone and surface waters than in the deep ocean. Which statement best explains the reason for this?

• There is more space for plants to grow in these areas of the ocean.
• There is more dissolved oxygen for plants in these areas of the ocean.
• The availability of sunlight and nutrients supports photosynthetic organisms.
• The high salinity and cool temperature supports photosynthetic organisms.
  

Which statement about oceans is true?

• Pressure is lower on the ocean floor.
• Water temperature increases with depth.
• More photosynthesis occurs in the warmer surface waters.
• The colder, deeper waters are less dense than the surface waters.
  

Use the marine food web to answer the question. Which organism most accurately represents a link between an aquatic and terrestrial environment?

• fish
• pelican
• plankton
• shark
  

Which statement best describes how nutrients move in the ocean as a result of upwelling?

• Nutrients move from estuaries into the intertidal zone.
• Nutrients move from warm, shallow areas to deep, colder areas.
• Nutrients move from the neritic zone to the intertidal zone.
• Nutrients move from deep, colder areas to warm, shallow areas.
  

A snaggletooth fish has a glowing lure that extends from its chin to attract prey. In which ocean zone does this fish most likelylive?

• bioluminescent zone
• intertidal zone
• neritic zone
• oceanic zone
  

In what ocean zone do coral reefs grow?

• estuarial zone
• intertidal zone
• neritic zone
• oceanic zone