Darwin believed that a giraffe has a long neck because (a) a creator deșigned it that way (b) ca...

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Darwin believed that a giraffe has a long neck because
(a) a creator deșigned it that way
(b) catastyrophes eliminated short-necked forms
(c) its ancestors stretched their necks to get food
(d) ancestral giraffes with slightly longer necks than other got more food and left more surviving offspring
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