The type of division in somatic cells is ....... division.

The genetic material (chromatin reticulum) condenses and appears in the form of long thin and double strings in ........

Bigger units of the universe are …………………………..

The sun takes about ……………….. million years to complete one rotation around the center of the galaxy.

A flat and gaseous round disk that formed the solar system.

the image formed by a convex mirror is ………………….

The distance between the focus of the lens and its optical center is called……………………….

the shortest distance covered by a body in a certain direction is called ........................