Question

New systematics introduced by Sir Julian Huxley is also called
A. Phonetics
B. Cladistics
C. Biosystematics
D. Numerical taxonomy

Answer 1

Hint: It is a taxonomy based research on genetic evolution of plants and animals in 1940 carried out by Sir Julian Huxley.

Complete Answer:
- New systematics is the study of taxonomy. This taxonomy was done on the basis of the characters such as ecology, morphology, genetic, cytology, etc. of an organism. This system was coined by Sir Julian Huxley in 1940.
- Phenetics known as taximetrics are an attempt to identify species, typically identical in morphology or other measurable characteristics, regardless of their phylogeny or evolution. It is directly related to the numerical taxonomy of the use of numeric classification systems.
- Cladistics is the method to biological classification where species are identified by the current common ancestor in groups ("clades"). Hypothesized relationships are usually based on similar derived traits (synapomorphies), and can be traced back with the nearest common ancestor. A central characteristic of the clade is that it consists of a shared ancestor and all its offsprings.
- The principle of systematics, which creates taxonomical attachments on the basis of evolutionary, genetic and morphologic traits, is also termed new systematics or biosystematics. The cladistics or phylogenetic classification is discussed by new systematics.
- Numerical taxonomy is a biological system of classification that covers grouping of taxonomic units based upon their characteristics by numerical methods. It tries instead of a subjective assessment of its properties by using computational algorithms, such as cluster analysis.

Thus, the correct answer is option C. i.e., Biosystematics.

Note: New systems are also called biosystematics as the definition of systems which generates taxonomic affinities on the basis of evolutionary, genetic and morphological traits. It deals with the phylogenetic classification.