Chthamalus stellatus and Semibalanus balanoides do not coexist in the same tidal zones because
A. S. balanoides outcompetes C. stellatus.
B. C. stellatus outcompetes S. balanoides.
C. S. balanoides preys on C. Stellatus.
D. the two species require different resources.
E. the two species require different resources and C. stellatus outcompetes S. balanoides.
A. S. balanoides outcompetes C. stellatus.
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