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生物是自然界中的主体，生物之间总是以各种形式相互作用。其中生物之间的竞争就是最普遍的相互作用形式。从生物类群的角度，竞争可分为种内竞争与种间竞争。种内竞争是指发生在同种个体之间的竞争形式，而种间竞争是指发生在异种个体之间的竞争形式。种间竞争是竞争理论的核
Creatures are the main body in nature. Creatures interact with each other in various forms. The competition among living things is the most common form of interaction. From the perspective of the taxa, competition can be divided into intraspecific competition and interspecific competition. Intra-species competition refers to the form of competition that occurs between individuals of the same species, while interspecific competition refers to the form of competition that occurs between heterogeneous individuals. Interspecific competition is the nucleus of competition theory