Exact(35)
In the famous words of Leigh Van Valen ([1973]), "Evolution is the control of development by ecology" (except in clades where there is no clear developmental sequence).
Although the institution of marriage presents a clear developmental path of institutionalized marriage companionate marriage individualized marriage, viewing the family as a whole system, current families are going beyond the conjugal family mode and experiencing a return to complexity.
Other clear developmental 'vestiges' come from the circulatory system of eutherian (placental) mammals, which undergo rapid and radical changes from fetal to newborn circulation, and from vertebrate urogenital (excretory and reproductive) systems, which in both males and females share many incipient structures that quickly shift function during sexual differentiation.
Children's understanding of their own and others' mental states (called theory of mind) follows a clear developmental trajectory; by 3 to 5 years of age they understand the beliefs of others can be false (Wellman and Gelman 1998) and by the middle to late elementary school years, they can reason about complex mental states such as intentions and desires with relative ease.
In addition, clear developmental trajectories were observed, with improvements in the ability to hold temporary bound information in working memory between Grades 2 and 3, and between the child and adult groups, that were independent from memory for the individual elements.
Our results indicate a clear developmental progression of PNN formation in the mouse neostriatum.
Similar(25)
Lastly, the cross-sectional nature of our age analyses precluded any clear-cut developmental inferences.
It became clear that developmental complexity and environmental adaptation probably do not solely rely on protein-mediated three-dimensional transcription.
Once transplanted and it isn't yet clear which developmental stage would be best the cells must integrate into preformed retinal neural circuitry, something cells never normally do.
Although these are integrated into a single functional complex that we call "the eye," it is clear from developmental and anatomical studies that eyes consist of modular components: eyes resemble a prefabricated building with many elements built independently and then assembled into a whole.
Although the exact reasons for these apparent contradictions are not yet clear, the developmental stage of the tissue may be important [7], [26], [27].
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