Write short notes on the following :
(a) Neural coordination
(b) Forebrain
(c) Midbrain
(d) Hindbrain
(e) Retina
(f) Ear ossicles
(g) Cochlea
(h) Organ or Corti
(i) Synapse

Write a short note on the following : (a) Green bouse gases (b) Catalytic converter (c) Ultra-violet B (d) Ozone layer (e) Electrostatic precipitator.

Define the following terms : (a) aestivation (b) placentation (c) actinomorphic (d) zygomorphic (e) superior ovary (f) perigynous flower (g) epipetalous stamen.

List the hormones secreted by the following : (a) Hypothalamus , (b) Pituitary , (c ) Throid, (d) Parathyroid (e ) Adrenal, (f) Pancreas, (g) Testis , (h) Ovary (i) Thymus, (j) Atrium , (k) Kidney, (I) G-I Tract (M) Transmission of a nerve impulse across a chemical synapse

Which of the following materials fall in the category of a " Pure Substances" ? (a) Ice (b) Milk ( c) Iron (d) hydrochloric acid ( e) Calcium Oxide ( f) Mercury (g) Bricks (h) Wood (i) Air

(i) Write the coordinates of the points A,B,C,D,E. (ii) Write the coordinates of F,G,H,I,J

Find the areas of the following figures by counting square: (a),(b),( c), (d), (e), (f), (g), (h), (i), (j), (k), (l),(m),(n)

Classify the following into elements, compounds and mixtures (a) sodium (b) soil, (c ) sugar solution (d) silver (e ) calcium carbonate (f) soap (g) tin (h) silicon (i) coal

See fig and Write the following : (i) The coordinates of B (ii) The coordinates of C (iii) The point identified by the coordinates (-3,-5) (iv) The point identified by the coordinates (2,-4) (v) The abscissa of the point D . (vi) The ordinates of the point H . (vii) The co-ordinates of the point L . (viii) The co-ordinates of the point M .