EVERYDAY SCIENCE

SCIENCE

VIRUS AND BACTERIA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is classification of life based on?
A
structure and type of cells
B
function and number of cells
C
number of cells only
D
structure and function
Explanation: 

Detailed explanation-1: -The hierarchical system of classification originally conceived by Linnaeus includes seven levels or taxons. These levels are kingdom, phylum, class, order, family, genus, and species; representing general to specific organism attributes.

Detailed explanation-2: -A cell is capable of carrying out all life processes, such as nutrition, excretion, respiration, etc. Hence it is called as the functional unit of life. The cell is the smallest unit of life and all the living beings are made up of cells. Hence a cell is called the structural unit of life.

Detailed explanation-3: -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-4: -1. Linnaeus’ hierarchical system of classification includes seven levels. They are, from largest to smallest, kingdom, phylum, class, order, family, genus, and species.

Detailed explanation-5: -As we all know, the body of all living beings is made up of cells which carry out certain elementary functions. Therefore, a cell is called as the “Basic structural and functional units of living organisms”.

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