Multiple Choice
In the context of marine aquatic biomes, which ecosystem covers about 3/4 of Earth's surface?
48. Ecology
Marine Aquatic Biomes
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Which ecosystem is characteristic of the intertidal zone in marine aquatic biomes?
A
Deep-sea benthic ecosystem with perpetual darkness and high pressure
B
Coral reef ecosystem restricted to warm, clear subtidal waters that remain continuously submerged
C
Rocky shore (littoral) community periodically exposed during low tide and submerged during high tide
D
Open-ocean pelagic ecosystem far from shore and above the ocean floor
Verified step by step guidance1
Understand the definition of the intertidal zone: it is the area of the shoreline that is exposed to air at low tide and submerged under water at high tide.
Identify the characteristics of ecosystems in the intertidal zone, which must tolerate periodic exposure to air and varying water levels.
Evaluate each option by comparing its description to the intertidal zone characteristics:
- Deep-sea benthic ecosystem: located in deep ocean, always submerged, no exposure to air, so not intertidal.
- Coral reef ecosystem: found in warm, clear waters that are continuously submerged, so not periodically exposed.
- Rocky shore (littoral) community: periodically exposed during low tide and submerged during high tide, matching intertidal zone conditions.
- Open-ocean pelagic ecosystem: located far from shore and always underwater, so not intertidal.
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