Let's review the adapations of Fucus spp. and Ascophyllum...
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A holdfast secures the plant
to the rock.
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Bladders or vesicles provide
buoyancy to the thallus so that it floats at
the surface for lots of light.
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A flexibility to its structure
allows the thallus to conform to the shape and
action of the waves and avoid being torn loose.
- The entire blade is able to absorb nutrients
from the water.
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