NEET BIOLOGY

Detailed explanation-1: -Scientists classify living things at eight different levels: domain, kingdom, phylum, class, order, family, genus, and species. In order to do this, they look at characteristics, such as their appearance, reproduction, and movement, to name a few.

Detailed explanation-2: -One branch of biology, called taxonomy, focuses on the classification of living things. Taxonomy is the study of relationships between living things and the formal classification of organisms into groups based upon those hypothesized relationships. Organisms are classified based upon their similarities and differences.

Detailed explanation-3: -There are four main characteristics that scientists use to classify organisms: 1) number of cells – unicellular or multicellular; 2) presence of nucleus – prokaryote or eukaryote; 3) how energy is obtained – autotroph or heterotroph; 4) mode of reproduction – sexual or asexual.

Detailed explanation-4: -Scientists classify living things to organize and make sense of the incredible diversity of life. Classification also helps us understand how living things are related to each other. All life can be sorted into three large groups called domains. Kingdoms are the next level and are divided into phyla (phylum, singular).