Differntiate between ureter and urethra.

Differntiate between quiescence and dormancy with reference to seed germination.

Differntiate between soaps and synthetic detergent

Differntiate between tubular secretion and selective reabsoption.

What is rainbow?Differntiate between a rimary rainbow and secondary rainbow with a diagram.Why two obserers do not see the same rainbow?

Differentiate Male urethra and female urethra