EVERYDAY SCIENCE

SCIENCE

VIRUS AND BACTERIA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Modern classification is based on ____
A
common ancestry
B
where organisms live
C
only morphology
D
number of cells
Explanation: 

Detailed explanation-1: -Most modern systems of classification are based on evolutionary relationships among organisms – that is, on the organisms’ phylogeny. Classification systems based on phylogeny organize species or other groups in ways that reflect our understanding of how they evolved from their common ancestors .

Detailed explanation-2: -It is a system of classification based on evolutionary & genetic relationships of organisms in addition to natural characters which gives the most accurate sequence of organisms and classification of life. It is based on molecular and genetic analyses.

Detailed explanation-3: -Classifying organisms on the basis of descent from a common ancestor is called phylogenetic classification . It is based on evolutionary ancestry and generates trees called cladograms.

Detailed explanation-4: -In the modern classification there are eight levels of classification that is domain, kingdom, phylum, class, order, family, genus and species. More species are added in the group as per their identification.

Detailed explanation-5: -Phylogenetic System of Classification is based on the evolutionary trends, order and ancestry of the organisms.

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