UNIT 14- SHALLOW SEAS REVIEW

Which of the following do kelp and seagrasses have in common?

• They both grow best in water with high clarity.

• They both have roots that penetrate under the mud.

• They both reproduce with flowers.

• They both only grow in fresh water.

Which of the following problems could be caused if a large patch of seagrass disappeared from an area?

• A. Grass grows back, so there are no problems.

• B. The buildup of sediments and the recycling of nutrients would be impacted

• C. There would be a higher risk of erosion on the ocean floor in that area.

•  D. Both B and C are correct.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

All of the following terms are correctly matched with their descriptions Except for which one?

• Stipe- like a leaf. It extends horizontally in the water to get sunlight for photosynthesis

• Gas Bladder- help keep the kelp upright and oriented towards the surface

• Frond- palm like leaf structure

• Holdfast- anchor that helps keep the kelp to the rocky bottom

Seagrass and kelp beds have __________ biodiversity.

• Medium

• Low

•   Non-existent

• High

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Seagrasses are __________  and kelp are _________________.

• Flowering plants ; Non-flowering plants

• Flowering plants ; Brown algae/seaweed

• Red algae ; Flowering plants

• Non-flowering plants ; Brown algae/seaweed

How are seagrasses used by organisms?

•    For nurseries

• For shelter

• For food

• All of above

What is the purpose of the holdfast?

• To bring nutrients into the kelp through the soil.

• To attach the kelp to rocks.

• To help the kelp float towards that sunlight.

• All of the above are correct

On Benny’s trip, he notices the reef begins almost immediately at the shore line of the island. This type of reef is probably a(n) __________

• Barrier reef

• Fringing reef

• Patch reef

• None of the above

What adaptations do kelp have to protect them from the many organisms that live on their fronds?

    

• A. They are coated in slime to help protect them

•  B. They produce toxins to kill organisms that attach to them.

• C. They shed their fronds if they are covered too extensively, and grow new ones.

• D. Both A and C are correct

Benny is touring various reefs in the Caribbean. On one island, he decides to paddle his kayak across a wide lagoon to the reef that awaits in the distance. After paddling for about 20 minutes, he arrives at the reef, puts on his snorkel gear, and gets in the water. This is most likely what type of reef?

• Atoll

• Barrier reef

• Fringing reef

• none of the above