A. In all the body systems, the brain is so important. R. Brain co-ordinates all the systems.

The weight of brain is 4% % of the whole body.

Answer is (A) Medulla

Brain uses 20% of the whole body energy.

Correct option is (D) (0, 0) The co-ordinates of origin is (0, 0).

Correct option is (C) (-2, –4) x-coordinate of the point = abscissa of the point = -2 and y-coordinate of the point = ordinate of the point = -4 \(\therefore\) Coordinates of the point...

Answer is (B) i and ii

Organising function of management.

Nervous system and endocrine system.