Can sponges co-ordinate their various functions?

Liver is the largest gland and is associated with various functions, choose one which is not correct.

What is a proenzyme? Enlist various proenzymes involved in process of digestion and state their function.

Find the equation in cartesian co-ordinates of the locus of z if. | z - 3 | = 2

Find the equation in cartesian co-ordinates of the locus of z if. | z | = 10

Find the equation in cartesian co-ordinates of the locus of z if abs(z) =10

Define co-ordination number.

What are co-ordinates of origin?

A(-7,6), B(2,-2) and C(8,5) are co-ordinates of vertices of triangle ABC . Find the co-ordinates of centroid of triangle ABC .

Co-ordinates of point P are (2,0). Find the co-ordinates of point Q which is 6 units on right of point P.