A highly biological productive ocean surface appears chalky; what plankton is likely successful here?
a. Diatoms
b. Dinoflagellates
c. Coccolithophores
d. Isopods
ANS: C
Coccolithophores are able to utilize brightly lit ocean surfaces like the Mediterranean. Their numbers
can bloom, making the water appear chalky or milky. These plankton are capable of building seabed
deposits of ooze, like that at the White Cliffs of Dover in England. Information can be found in the
section Most Phytoplankton are Photosynthetic Autotrophs.
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