Match the following items with the correct phrase.
_______1. Has caused massive fish kills along the east coast of the United States.
_______2. Associated with red tides and paralytic shellfish poisoning.
_______3. The source of agar.
_______4. The only alga known to cause an infectious disease.
_______5. Classified as an alga by some taxonomists and a protozoan by others.
a. Prototheca
b. Pfiesteria piscicida
c. dinoflagellates
d. a red marine alga
e. Euglena
1. b. Pfiesteria piscicida
2. d. a red marine alga
3. c. dinoflagellates
4. a. Prototheca
5. e. Euglena
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