Questions

Because arteries have to have thick walls for use of protection. Its when you get to veins where the walls get thinner. And the use of the heart is to pump blood to all of the cells and organs in the body so it would be to transport blood away from the heart.

i.e. 

Arteries = Away from the Heart 
Veins = Back to the Heart.

As against malloc(), calloc() needs two arguments, the number of elements  to be allocated and the size of each element. For example,

 p = (int *) calloc (10, sizeof (int));

would allocate space for a 10- integer array. Additionally, calloc() would also set each of this element with a value 0.

Thus the above call to calloc() is equivalent to:

p = (int *) malloc (10 * sizeof (int));

memset (p, 0, 10 * sizeof( int ));

Ganeshan Neelakanta Iyer has become the first Indian to be nominated as a member of the ITTF Umpires and Referees Committee (URC). His term will be for two years and is extendable. Iyer is the only assigned competition manager of the International Table Tennis Federation (ITTF) in India. Beside this, Ganeshan has also been recommended as the Technical Commissioner from the Asian Continent to ITTF and his term will be for a period of four years. He is also the chairman of the South Asian Federation technical committee and a member of the Technical Committee of the Commonwealth Table Tennis Federation (CTTF).