Nutrients in coral reefs are ____. A) extremely limited, which is ...

[kshipps]

Nutrients in coral reefs are ____.
 A) extremely limited, which is why productivity is lower than the deep ocean
  B) so plentiful that there is no limit to phytoplankton growth
  C) largely trapped below the pycnocline
  D) recycled efficiently because the water is shallow

Question 2

Perhaps the most difficult oceanic habitat is/are ____.
 A) the abyssal zone
  B) intertidal coarse sand and cobble beaches
  C) intertidal rocky shores
  D) the epipelagic zone

[firehawk60]

Answer to Question 1

D

Answer to Question 2

B

[kshipps]

Thanks for the timely response, appreciate it

[kusterl]

Gracias!