
Phytoplankton and Gulf Ecosystems
Interactive Video
•
Biology
•
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
What is the primary role of phytoplankton in the ocean?
They produce oxygen.
They are a food source for land animals.
They decompose organic matter.
They produce carbon dioxide.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do scientists study phytoplankton from space?
By observing fish behavior.
By collecting water samples.
Using satellites that detect color changes.
Using telescopes.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What conditions are necessary for phytoplankton to thrive?
Cold temperatures and high pressure.
Nutrients, proper temperature, and light.
Low nutrient levels and darkness.
High salinity and low light.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do coastal areas have higher concentrations of phytoplankton?
They have more sunlight.
They have less water movement.
They are closer to the equator.
They receive more nutrient runoff from land.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a significant source of nutrients for the Gulf of Mexico?
Ocean currents.
Desert dust.
Volcanic ash.
Nutrient runoff from the Mississippi River.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main cause of the dead zone in the Gulf of Mexico?
Oxygen depletion due to bacterial activity.
Overfishing.
Increased salinity.
Oil spills.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do bacteria contribute to the formation of the dead zone?
By blocking sunlight.
By producing oxygen.
By increasing water temperature.
By decomposing waste and using up oxygen.
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