The distinction between poisonous and venomous is how the substance (poison or venom) is administered or delivered 首先需要明确的是，生物毒可以分为poisonous和venomous两类（区分并不十分严格） 。 前者是自身或分泌物有毒（或含有外源性毒素），其它生物吸入、吞入或接触后中毒；后. A poison is a substance that causes damage, illness or.
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