Figure 1: An ex vivo cell culture model for gene activity oscillations. We therefore developed an ex vivo mouse primary cell culture assay for mesoderm patterning and segment formation, allowing ...
The geographic area hypothesis advances area as the primary cause of latitudinal gradients in diversity. The greater area of tropical zones, it suggests, stimulates speciation, inhibits extinction, ...
The increase in species richness from the poles to the Equator has been observed in numerous terrestrial and aquatic taxa. A number of different hypotheses have been put forward as explanations for ...
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