Created from Youtube video: https://www.youtube.com/watch?v=R7t7qrH_dscvideoConcepts covered:red tides, algal blooms, dinoflagellates, bioluminescence, toxins
Red tides, caused by algal blooms, can be both harmful and beneficial to ecosystems. While they can produce toxins that affect marine life and humans, they also play a crucial role in photosynthesis and the food web, with some species even exhibiting bioluminescence as a defense mechanism.
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The Terrifying (but Awesome) Science Behind Red Tides
Concepts covered:red tides, algal blooms, dinoflagellates, bioluminescence, toxins
Red tides, caused by algal blooms, can be both harmful and beneficial to ecosystems. While they can produce toxins that affect marine life and humans, they also play a crucial role in photosynthesis and the food web, with some species even exhibiting bioluminescence as a defense mechanism.
Question 1
Red tides can release toxins into the air.
Question 2
What triggers algal blooms in water?
Question 3
Dinoflagellates are microscopic single-celled _____ carried by waves and currents.
Question 4
CASE STUDY: A coastal town experiences a sudden algal bloom, causing concern among residents.
What should the town officials do next?
Question 5
CASE STUDY: A local news station reports on the health effects of red tides.
Select three correct health effects of red tides.
Question 6
All algae are classified as plants.
Question 7
What causes the Bay of Fundy's massive tides?
Question 8
Luciferase activity is dependent on a pH of _____ for light emission.
Question 9
CASE STUDY: A seafood restaurant in Florida faces a red tide event affecting its supply.
What do you recommend the restaurant do?
Question 10
Dinoflagellates can emit light when disturbed.
Question 11
How do red tides affect marine life?
Question 12
The Bay of Fundy experiences tides that change by up to _____ feet.
Question 13
Red tides are always red in color.
Question 14
What is the role of peridinin in algae?
Question 15
Brevetoxins affect the _____ system of both fish and humans.
Question 16
Algal blooms can deplete water's oxygen levels.
Question 17
How do dinoflagellates produce light?
Question 18
Red tides are caused by algal blooms that release _____ into the water.
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