(CH 3 ) 2 NH

(CH 3 ) 3 N

CH 3 NH 2

The impotence of creationism.

Natural selection acts by competition.

The role of natural selection in this colorful world

The delicate hierarchy of the natural system.

The agency of selection can account for more cases.

No leaps in natural evolution. As each species tends by its geometrical rate of reproduction to increase excessively in number; and as the modified descendants of each species will be enabled to increase by as much as they become more diversified in habits and structure, so as to be able to seize on many and widely different places in natural selection to preserve the most divergent offspring of any one species. Hence, during a long-continued course of modification, the slight differences characteristic of varieties of the same species, tend to be augmented into the greater differences characteristic of the species of the same genus. (41)______. New and improved varieties will inevitably displace and destroy the older, less improved, and intermediate varieties; and thus species are rendered to a large extent defined and distinct objects. Dominant species belonging to the larger groups within each class tend to give birth to new and dominant forms; so that each large group tends to become still larger, and at the same time more divergent in character. But as all groups cannot thus go on increasing in size, for the world would not hold them, the more dominant groups beat the less dominant. (42)______. This tendency in the large groups to go on increasing in size and diverging in character, together with the inevitability of much extinction, explains the arrangement of all the forms of life in groups subordinate to groups, all within a few great classes, which has prevailed throughout all time. This grand fact of the grouping of all organic beings under what is called the Natural System, is utterly unexplainable on the theory of creation. (43)______. As natural selection acts solely by accumulating slight, successive, favorable variations, it can produce no great or sudden modifications; it can act only by short and slow steps. We can see why throughout nature the same general end is gained by an almost infinite diversity of means, for every peculiarity when once acquired in long inherited, and structures already modified in many different ways have to be adapted for the same general purpose. We can, in short, see why nature is extravagant in variety, though not generous in innovation. But why this should be a law of nature if each species has been independently created no man can explain. (44)______. Many other facts are, as it seems to me, explicable on this theory. How strange it is that a bird, under the form. of a woodpecker, should prey on insects on the ground and that upland geese which rarely or never swim, should possess webbed feet, and so in endless other cases. But on the view of each species constantly trying to increase in number, with natural selection always ready to adapt the slowly varying descendants of each to any unoccupied or ill-occupied place in nature, these facts cease to be strange, or might even have been anticipated. (45)______. We can to a certain extent understand how it is that there is so much beauty throughout nature; for this may be largely attributed to the agency of selection. That beauty, according to our sense of it, is not universal, must be admitted by every one who will look at some hideous bats with a distorted resemblance to the human face. Sexual select

道路交通安全违法行为

有责交通事故赔偿记录

使用年限

行驶里程

腮腺组织

舌下神经

面神经

面总静脉

咬肌附着

契丹公司生产的水壶上未经允许贴上他人的注册商标用于销售

大辽公司生产的方便面的包装上使用“康帅傅”商标，消费者混淆，误认为康师傅方便面而购买

某灌汤包商场擅自使用“庆丰”作为招牌

某酒厂散布谣言，声称当地另外一家知名酒厂生产的酒含有对身体有害的成分

Statement (1) accurate; Statement (2) inaccurate

Statement (1) inaccurate; Statement (2) inaccurate

Statement (1) accurate; Statement (2) accurate

Statement (1) inaccurate; Statement (2) accurate

腮腺导管

面神经

舌下神经

舌动脉

面静脉

法律保障公民的言论自由权

要尊重网民自由上网的权利

网民的声音就是全体人民的心声

党的宗旨是全心全意为人民服务

标签信息泄露

标签丢失

利用标签的唯一标识符进行恶意跟踪

盈利

实现微利

亏损

盈利但不能实现目标利润