natural selection造句
(61) Charles Darwin, in his theory of evolution by means of natural selection, stressed the role of competition.
(62) So natural selection pushes the population even further towards the Always Defect extreme.
(63) And is natural selection the only factor to account for the observed apparent improvement in biological adaptation and complexity?
(64) The difficulty with natural selection which Taylor raises repeatedly is that it explains evolution by chance.
(65) Natural selection does not properly claim that more complex organisms will be favoured.
(66) Natural selection favours the habit in stickleback males because female sticklebacks will only mate with territorial males.
(67) As far as Poulton was concerned, the fact that many animals possessed protective coloration proved the effectiveness of natural selection.
(68) Thus, the logic of natural selection ceased favoring the extremely mild strains and now increasingly favored the most aggressive ones.
(69) Natural selection favoured those ancestral caddis genes that caused their possessors to build effective houses.
(70) The better the host defends, the more natural selection will promote the parasites that can overcome the offense.
(71) And the pressure of natural selection on the cuckoo is considerably greater than that on the host species.
(72) The theory of evolution by natural selection reached out far beyond biology, and therein lies its significance.
(73) Nature experiments through natural selection: the evolutionary process rewards new adaptations that work.
(74) One qualification is that some evolutionary changes occur by chance, without natural selection.
(75) In that case, evolution by natural selection occurred, but did not create a new species.
(76) Are we simply following some algorithm-no doubt favoured over other less effective possible algorithms by the powerful process of natural selection?
(77) These create a combinatorial explosion of possible genotypes on which natural selection acts.
(78) The final multifaceted perfection of mimicry has been put together by the summed natural selection provided by many different species of predators.
(79) Natural selection, which normally works on the margins, suddenly alters the core of the system.
(80) It follows from all this that natural selection can not be the sole explanation of evolutionary change.
(81) Both would interfere with the natural process of evolution and natural selection which ensured social progress.
(82) It may seem odd that sterile animals can evolve a variety of forms, but this too comes from indirect natural selection.
(83) Aggression would have given a survival advantage in cave dweller days and earlier and so would have been favored by natural selection.
(84) I am not convinced that the principle of natural selection alone makes the emergence of rational beings probable.
(85) Its laws are as elegant as is the idea of natural selection.
(86) It has, therefore, through natural selection, become part of the behavioural repertoire of the house martins.
(87) But what about the caddis house? Natural selection favoured those ancestral caddis genes that caused their possessors to build effective houses.
(88) He concluded that these expressions evolved through natural selection.
(89) Evolving through natural selection is about time and numbers.
(90) Why should it prevail against natural selection?
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