Question

How do scientists use systemics to show evolutionary relationships? Please include how shared and derived characteristics, morphology, and taxonomy help to shape the relationships of organisms.

Answer 1

Systematics is the study of biological diversity and evolutionary relationship between organisms which includes both the modern as well as the extinct.

• Scientist study the relationships by making many different diagrams and "trees" (cladograms, phylogenetic trees, phylogenies, etc.).
• The include the scientific names of organisms, species descriptions and overviews, taxonomic orders, and classifications of evolutionary and organism histories.
• Explaining the biodiversity of the planet and its organisms. The systematic study is that of conservation.
• Manipulating and controlling the natural world. This includes the practice of 'biological control', the intentional introduction of natural predators and disease

Systematics deal with the relationship between organisms through time which stated that they are synonymous with phylogenetics.Systematics uses taxonomy as a primary tool for the understanding, as nothing about an organism's relationships with other living things can be understood without it first being properly studied and described in sufficient detail to identify and classify it correctly. Organisms belonging to different taxon share common characteristics like presence of mammary glands in the animals belonging to the class Mammalia. Many organisms share the characteristics of their common ancestor. Morphological and anatomical similarities like presence of 5 digits in the limbs in the case of mammals help us to understand the relationship between the organisms