Sentence examples for evolution within the group from inspiring English sources

Evolution within the group has involved considerable elaboration of complex colonies, with the zooids themselves tending to become smaller and simpler in structure.

This is true in the sense that most of the living species and subspecies in the world have probably been described; but because of inadequacies in the fossil record and repeated cases of convergent evolution within the group, our knowledge of the phylogenetic relationships between orders, suborders, and families of birds is inferior to that of mammals and reptiles.

We also use divergence time estimates generated using fossil calibrations to qualitatively assess the phylogeographic implications of evolution within the group.

The analysis described here presents a relatively coarse approach to visualizing trends in body size; a more rigorous quantitative analysis that incorporates all known allosauroid taxa is needed to further explore body size evolution within the group (although see [133]).

Our aims were to test the two competing hypotheses for their broadest subdivision proposed in the literature, to test genus validity and to formulate hypotheses concerning morphological character evolution within the group.

More genomic data are needed from representatives of each major clade, to solidify phylogenetic understanding as well as to investigate organellar evolution within the group.

Since MRSA clonal groups are composed of closely related isolates, extraordinary efforts are required to identify enough genetic variation to measure evolution within the groups.

The present study corroborates these results, and reiterates the complex morphological evolution within this group (cf. Figure 4), which has misled earlier taxonomists (e.g. [ 4- 16] 16]).

In contrast to other lower teeth, the P3 seems to have undergone substantial evolution within the crown group, largely via the addition of several lophate structures.

These gene tree data are combined with Bayesian hypothesis testing, morphometrics analysis, study of penis morphology, and relaxed molecular clock analyses to understand the biogeography and timing of troglomorphic evolution within this group.

Radtkey [ 8] proposed allopatric speciation followed by asynchronous dispersals across island groups plus resource competition generating character displacement as the drivers of speciation and body size evolution within this group.