Different between maize and mango in root system

difference:

1)mango root system

Mango is having a well-defined Tap root system which can extend up to 20 feet (6 meters ). Taproots are the roots consists of one thick, cylindrical main root, known as the primary root, from which further branches of roots arises known as the secondary and the tertiary roots.

2)maize root system

Maize forms a complex root system comprising embryonic and post‐embryonic roots.  Later in development the post‐embryonic shoot‐borne root system becomes dominant and is responsible together with its lateral roots for the major portion of water and nutrient uptake.

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".