Question on: JAMB Biology - 2024
In which zone of the marine habitat does the organisms require adaptation for attachment?
A
Supratidal
B
Subtidal
C
intertidal
D
abyssal zone
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Correct Option: C
The intertidal zone is the area of a marine habitat that is exposed to air at low tide and submerged at high tide. Organisms in this zone experience fluctuating conditions, including:
- Desiccation: Exposure to air can dry out organisms.
- Wave action: Waves can cause dislodgment.
- Changing salinity: Salinity changes with tides and rainfall.
Due to these conditions, organisms in the intertidal zone often require adaptations for attachment to the substrate (rocks, sand, etc.) to avoid being swept away or dislodged. Examples include:
- Barnacles: They secrete a cement-like substance to attach to rocks.
- Mussels: They use byssal threads to anchor themselves.
- Seaweeds: They have
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