competitive exclusion
(biology) The principle that states that two species who are very similar, and compete for the same resources, cannot coexist indefinitely, as the one with the slight advantage will outperform the other and eventually drive it into extinction.
A rudimentary stairchair used to transport handicapped people, and others in need, up and down stairs in an emergency usually attached to stairwells.
Archaic form of assegai.
Alternative spelling of finger bowl
しばしば、ある種が他の種を競争で凌駕し最終的に駆逐してしまうという原理が、非常に近縁の二種の鳥が同じ繁殖地に長期的に共存できない理由を説明する。
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