Marine Final Review 3-4

The picture here is an organism that is theorized to be one of the first photosynthetic, single celled organisms to inhabit Earth. The organism is

• pterophyte
• spermatophyte
• cyanobacteria
• virus

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NGSS.MS-LS2-3

NGSS.MS-LS1-6

Plankton that uses photosynthesis:

• Phytoplankton
• Zooplankton

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NGSS.MS-LS1-6

What do dinoflagellates use to move?

• cilia
• 1 flagella
• 2 flagella
• spines

Cetaceans can be divided into 2 groups based on whether they have?

• flukes/tail fins
• teeth/baleen
• lungs/gills
• flippers/dorsal fin

Using the Law of 10%, how many pounds of phytoplankton would support 10 pounds of large fish?

sun-> phytoplankton-> zooplankton-> small fish-> large fish

• 10

• 100

• 1000

• 10000

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NGSS.MS-LS2-3

High biodiversity is 

• having a lot of the same organism.
• having a few of the same organism.
• having a lot of variety of different organisms.
• only having one of each organism. 

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NGSS.MS-LS2-5

This organism has a special adaptation that allows it to absorb oxygen. Where would you see this organism?

• Desert, where there is little water and hot temperatures.

• Tundra, where the animal lives at high altitudes and there is less breathable oxygen.

• Marine, Saltwater or freshwater where the oxygen must be absorbed from the water.

• All organisms have this adaptation.

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NGSS.MS-LS2-3

NGSS.MS-LS4-4

An estuary is...

• a body of water formed where freshwater and saltwater mix

• a relatively flat land stretching from either side of a river

• the beginning of a river

• an abiotic factor of a watershed

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NGSS.MS-LS2-3

To which condition do all species in the ocean depths have to adapt?

• lower salinity
• extreme pressure
• swift ocean currents
• hot water temperature

Which best explains the importance of estuaries?

• estuaries are freshwater areas that support a large amount of living things

• estuaries are areas where freshwater and saltwater collide, resulting in a large amount of biodiversity

• estuaries are tropical areas that support an abundance of life found usually in cold regions of the ocean

• Estuaries are nutrient-rich areas because they have large amounts of carbon dioxide seeping into the water from the ground below

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-5