What is the primary role of phytoplankton in marine ecosystems?

Coastal Ecosystems and Marine Life

Interactive Video
•
Biology, Science, Geography
•
9th - 10th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
They produce a significant portion of Earth's oxygen.
They create coral reefs.
They are a major source of food for humans.
They provide habitat for fish.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is NOT a function of coastal wetlands?
Producing limestone coral fragments
Filtering pollutants and sediments
Absorbing excess rain to prevent flooding
Providing habitat and nesting areas
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is an estuary?
A deep ocean trench
A freshwater lake
An area where freshwater mixes with saltwater
A type of coral reef
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of coastal wetland is characterized by grasses?
Estuaries
Salt marshes
Mangrove swamps
Coral reefs
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What makes coral reefs particularly vulnerable to environmental changes?
Their ability to withstand pollution
Their location in deep ocean waters
Their reliance on freshwater
Their fragility and diversity
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a major threat to coral reefs?
Excessive nutrients
Lack of sunlight
Overfishing and tourism
Increased salinity
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which ocean life zone is known for having the highest concentration of marine species?
Coastal zone
Abyssal zone
Bathyal zone
Euphotic zone
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