Given the dental formula of human beings

Dental formula in human beings is

Give dental formula of an adult man.

Explain the evolution of human beings.

Determine whether each of the following relations are reflexive , symmetric and transitive : Relation R in the set A of human beings in a town at a particular time given by R = {(x,y)} : x is exactly 7 cm taller than y }

Determine whether each of the following relations are reflexive , symmetric and transitive : Relation R in the set A of human beings in a town at a particular time given by R = {(x,y): x is father of y }

Determine whether each of the following relations are reflexive , symmetric and transitive : Relation R in the set A of human beings in a town at a particular time given by R = {(x,y): x is wife of y }

Determine whether each of the following relations are reflexive , symmetric and transitive : Relation R in the set A of human beings in a town at a particular time given by R = {(x,y)} : x and y live in the same locality }

Determine whether each of the following relations are reflexive , symmetric and transitive : Relation R in the set A of human beings in a town at a particular time given by (a) r= {(x,y): x and y works at the same place }