Which of the following statements is NOT true about the open ocean?

A. The open ocean has low levels of nutrients.
B. Organisms in the deep ocean are exposed to frigid temperatures and total darkness.
C. The open ocean begins at the low-tide mark and extends to the end of the continental shelf.
D. Most of the photosynthetic activity on Earth occurs in the open ocean within the photic zone.

How does the intertidal zone differ from the near shore zone in marine ecosystem?

A. organisms in the intertidal zone receive less light than organisms in the near shore zone.
B. organisms in the intertidal zone experience greater extremes of temperature and wave action than organisms in the near shore zone.
C. water depth in the intertidal zone is greater than in the near shore zone.
D. photosynthetic organisms occur in the intertidal zone but not in the near shore zone.

Question

07-10-2016
Biology

contestada

Which of the following statements is NOT true about the open ocean?

A. The open ocean has low levels of nutrients.
B. Organisms in the deep ocean are exposed to frigid temperatures and total darkness.
C. The open ocean begins at the low-tide mark and extends to the end of the continental shelf.
D. Most of the photosynthetic activity on Earth occurs in the open ocean within the photic zone.

How does the intertidal zone differ from the near shore zone in marine ecosystem?

A. organisms in the intertidal zone receive less light than organisms in the near shore zone.
B. organisms in the intertidal zone experience greater extremes of temperature and wave action than organisms in the near shore zone.
C. water depth in the intertidal zone is greater than in the near shore zone.
D. photosynthetic organisms occur in the intertidal zone but not in the near shore zone.

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Erudite1 Erudite1 · Answer 1 · 2017-10-09T16:51:18+02:00

The correct options are as follows:
1. C
The open ocean does not begin at the low tide mark and extend to the continental shelf, the oceanic zone typically begins in the offshore area where the water measures about 200 meters deep or deeper and it extends to the ocean floor.
2. B.
The inter tidal zone in the marine aquatic environment refers to the areas of the foreshore and the seabeds which is exposed to the air at low tide and submerged at high tide. One of the features of the inter tidal zone is that it is exposed to extreme temperatures, from very hot to near freezing point.