Choose the most appropriate answer for each.
-Pioneer species

A)Blending in and being hidden by the background
B)Relative abundance of each species
C)One organism benefits at another organism's expense
D)Opportunistic colonizers of a newly vacated habitat
E)Lichens on newly hardened, newly cooled lava
F)Number of species in a community
G)Symbiotic interaction that minimizes the costs and maximizes the benefits for both partners
H)One species is eliminated from an area of niche overlap
I)Tasty species resembles repugnant one
J)The process that leads from a pioneer community to a mature community
K)Natural reforestation of burned-over forest