What is not the role of diatom (硅藻) in ocean?
A、Primary production
B、First tropic level of food web
C、Major primary food source at intertidal zone
D、Major primary food source at surface open ocean.
A、Primary production
B、First tropic level of food web
C、Major primary food source at intertidal zone
D、Major primary food source at surface open ocean.
A、The species at tropic region are more r scale
B、The species at polar region are more r scale
C、The same
D、Not sure.
A、Red tide
B、Green tide
C、Jelly fish
D、All answers
A、Producing toxins
B、Low or no oxygen
C、Fish killing
D、Ocean Acidification
A、Low pH
B、High Temprature
C、Eutrophication
D、zooxanthellae
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