生态平衡是一种动态和相对的平衡。[]-八年级生物

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• 生态平衡意味着生态系统中各种生物的数量是恒定不变的。[]-八年级生物
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• 生态平衡是一种[]A．绝对平衡B．动、植物的数量相对平衡C．动态平衡D．永久的平衡-八年级生物
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• 生态平衡是一种[]A．动态平衡B．绝对平衡C．永久的平衡D．动植物数量相等-八年级生物
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