Answer:
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Hollow bones are always a disadvantage because it means that they are less sturdy and easier for predators to break.
The difference in height between successive high and low tides is called the tidal range.
where a species lives is their habitat.
The right answer is Lichen.
In ecology, a pioneer species is one of the first forms of life that colonize or recolonize a given ecological area.
Lichens are composite organisms resulting from a symbiosis between at least one heterotrophic fungus called mycobionte, representing 90% of all, and microscopic cells with chlorophyll (green algae or cyanobacteria autotrophic for carbon) called "photobionts" .
