Paper 2 style question on topic 5.3 Classification of diversity
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Summary list for topic 5.3 Classification of biodiversity
The binomial system of scientific names is used across the world. It was agreed by biologists at a series of congresses,
When a species is discovered it is given a scientific (binomial) name.
Taxonomists classify species using a hierarchy of taxa.
All organisms are classified into three domains; Archaea (called archaeans), eubacteria (bacteria) and eukaryote (eukaryotes). Note: Viruses are not classified as living.
Eukaryotes are classified into the main taxa: kingdom, phylum, class, order, family, genus and species.
In a natural classification, the genus and accompanying higher taxa consist of all the species that have evolved from one common ancestral species.
This natural classification helps identification of species and the prediction of shared characteristics by related species.
Taxonomists sometimes reclassify groups of species when new evidence about evolution appears.
Skills (can you ....)
Classify one plant and one animal species from domain to species level.
Remember and recognise the main features of:
bryophyta, filicinophyta, coniferophyta and angiospermophyta.(including vascular tissue)
porifera, cnidaria, platylhelmintha, annelida, mollusca, arthropoda and chordata.
birds, mammals, amphibians, reptiles and fish.
Construct a dichotomous key for use in identifying specimens.