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" .
<span>The
difference in structure of the antennae and antennules is their size or length.
Antennae are long sensory organs while antennules are short or small sensory organs. These
organs are connected to the head of an insect, crab, or other animal and they
are used for taste, balance, smell, touch, air motion and vibration</span>
