Inquiry Into Life- Chapter 27 Flashcards

The idea of _______ by means of ______ has played a central role in the science of biology

The idea of natural selection was proposed by ______ in the year_____ with the publication of ________.

Natural selection may be summarized by Darwin as "______with________"

_________ (1750)proposed that evolution occurred by the inheritance of __________characteristics.

According to Lamarck, individuals passed on to offspring ____ and _____changes acquired during their lives

According to _____: Giraffes evolved long necks b/c ancestral giraffes tended to stretch their necks and this neck extension was passed on to the next generations.

According to _____: the variation is not created by experience but already exist. He believed that variation is ________.

Evidence of Evolution:1. _________-by dating the rocks in which the fossils occur, one can get an accurate idea of how old the fossils are. fossils represent evolutionary change.

Evidence of Evolution:2. ________-compare____ and_____ of vertebrates (ex: all vertebrate embryos share similar ____instructions)

______structures: derived from the same body part present in an ancestor (ex: same bones might be put to different uses in related species)

_____structures: similar-looking structures in unrelated lineages. These are results of ______evolutionary adaptations to simil. environs. (_____ evolution= many paths to 1 goal)

3. _____level: the same pattern of divergence can be seen at the ____level.

________: evolutionary changes appear to accumulate at a____rate. (ex: _____gene)

The theory of evolution occurring due to natural selection is the subject of _______________

_______-the study of the properties of genes in populations