一.什么叫物种? 什么叫做物种?自然界的一切花、鸟、虫、鱼、猪、狗、猫、羊以及人类,这些都是物种。这是为人所皆知的,因此这个问题,看来似乎并没有什么复杂。不过倘若要仔细讲究起来,确也并不是一个十分简单的问题。如上述的花鸟虫鱼等等,其间的界限虽然十分明显,但是假使要问,它们彼此只是一个种呢,还是彼此本身内部还可分好多个种呢?种与种之间的界限如何划分?其标准是什么?那这就不十分简单了。因此,关于物 What is a species? What is a species? All flowers, birds, insects, fish, pigs, dogs, cats, sheep and humans in nature are all species. This is well-known, so the question seems to be nothing complicated. But if you want to pay attention to it, indeed it is not a very simple question. Such as the birds and insects fish, etc., during which the boundaries, although very obvious, but if you want to ask, they are just one species of each other, or each other itself can be divided into a number of species? How to divide the boundaries between species? What is the standard? That is not very simple. So, about things