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Evolutionary tree


The evolutionary tree of living things is currently supposed to run something along the lines of that listed below. Most of the tree was based on ideas from cladistics; where more than two groups are shown in a single branch, there is disagreement about how they diverged. Hypothetically taxonomy would follow the tree whenever possible, but in many places it does not at present.

The description as a "tree" results from earlier ideas of life as a progression from lower to higher forms. Although such views are discredited now, the imagery is too well established to be readily lost.

The terminology originates with Linnaean taxonomy: living things are classified as belonging to domain, kingdom, phylum, class, order, family, genus and species.

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(Date:5/22/2013)... Legionella pneumophila bacteria is responsible for legionellosis, an ... to infect us, this pathogen has developed a complex ... in our cells, thus avoiding these acting against the ... research centre, CIC bioGUNE, in which teams from the ... the National Supercomputation Centre in Barcelona (BSC) have also ...
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(Date:5/22/2013)... May 22, 2013. Plastic additives known as phthalates ... everywhere: They turn up in flooring, plastic cups, ... the Centers for Disease Control and Preventionthe bodies ... have come under increasing scrutiny. A growing collection ... can leech from packaging and mix with food) ...
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... important mechanism that regulates how many new cells are ... published in the latest issue of the prestigious scientific ... drugs for things like neurological disorders and anaemia," says ... body, old cells are continually being replaced by new. ...
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