'Clades' diaporamas de présentation

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Figure 13.1 Diagrammatic reconstruction of the history of continental drift.

Figure 13.1 Diagrammatic reconstruction of the history of continental drift.

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PHYLOGENY AND SYSTEMATICS

PHYLOGENY AND SYSTEMATICS. A little bit about taxonomy, classification and phylogeny. Systematics - study of the diversity and relationships of organisms both now and in the past. Taxonomy - classification, naming and description of taxa.

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Speciation The formation of a new species from a pre-existing one Takes a very long time.....

What is the biological concept of a species? What are the problems with this definition? How is the phylogenetic concept of a species different? How does the phylogenetic approach to classification differ from the more traditional L innaean approach? What is meant by: Haplotypes

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Bottom-heavy Clades & the Diversification of Life

Bottom-heavy Clades & the Diversification of Life. Introduction. What a clade is & transpecific evolution. Patterns of clade diversity: paleontologists have recently noticed that new clades diversify rapidly and early in their history = bottom-heavy.

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Zoology Notes #2

Zoology Notes #2. Interpreting Cladograms Big Idea: Phylogenies Depict ancestor and descendent relationships among organisms based on homology These evolutionary relationships are represented by Diagrams called cladograms (branching diagrams that organize relationships) .

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