Pelagic organisms can be divided into floaters, called __________, and swimmers, called
__________. Fill in the blank(s) with the appropriate word(s).
plankton, nekton
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Do the data you entered in Table ? above support your answer to question
?? Explain. What will be an ideal response?
As you saw in "DO or Die", adding nutrients to a lake has direct effects (such as stimulating the growth of phytoplankton) and indirect effects throughout the community (such as drastic effects on fish populations). Suppose you triple (3x) the phosphorus input in a lake where phosphorus is limiting, and phytoplankton populations grow dramatically. Based on your observations, which of the following predictions is most likely to follow the phytoplankton bloom?
What will be an ideal response?
How does the rate of seafloor spreading affect sea level?
A. Faster spreading heats up ocean waters causing them to expand and flood the land. B. Faster spreading produces broader ridges that displace water out of the oceans. C. They have no effect because the rates of seafloor spreading do not change over time. D. Faster spreading causes faster subduction, which pulls down continental margins.
What is the driving force for surface currents?