Author Question: Nutrients in surface waters can become depleted following periods of rapid phytoplankton growth ... (Read 68 times)

Arii_bell · **on:** Aug 22, 2018

Nutrients in surface waters can become depleted following periods of rapid phytoplankton growth known as ------------Fill in the blank(s) with the appropriate word(s).

Question 2

Small, single-celled autotrophs covered with disks of calcium carbonate fixed to the outside of their cell walls are
____________. Fill in the blank(s) with the appropriate word(s).