Place these taxonomic classification systems in the chronological order of their development:
- a. Whittaker's five-kingdom system
- b. Linnaeus's artificial system
- c. Bentham and Hooker's natural system
- d. Engler and Prantl's phylogenetic system
- e. APG system for flowering plants
- Ab – c – d – a – e
- Ba – b – c – d – e
- Ca – c – b – d – e
- Db – d – c – a – e
Show answer and explanation
Correct answer: (a) b – c – d – a – e
Explanation
The systems of classification, in the order in which they were developed:
- Linnaeus's artificial system (1753), based on a few characters such as the number of stamens;
- Bentham and Hooker's natural system (1862–1883), based on many characters together;
- Engler and Prantl's phylogenetic system (1887–1915), based on evolutionary relationships;
- Whittaker's five-kingdom system (1969): Monera, Protista, Fungi, Plantae and Animalia;
- the APG system (Angiosperm Phylogeny Group, from 1998), based on DNA sequences.
So the order is b – c – d – a – e.