Draw a diagram of the vertical section of human eye and label the following parts : (i) cornea, (ii) iris, (iii) aqueous humour, (iv) retina, (v) ciliary body, (vi) fovea centralis, (vii) choroid, (viii) pupil, and (ix) lens.

Draw the structure of the human ear and label the following parts: (i) tympanum, (ii) cochlea, (iii) pinna, (iv) malleus, (v) semi-circular canals, (vi) eustachian tube.

(a) Draw a diagram of a mature embryo sac of an angiosperm and label the following parts in it : (i) Filiform apparatus (ii) Synergids (iii) Central cell (iv) Egg cell (v) Polar nuclei (vi) Antipodals (b) Write the fate of egg cell and polar nuclei after fertilization.

(a) Draw a diagram of a mature embryo sac of an angiosperm and label the following parts in it : (i) Filiform apparatus (ii) Synergids (iii) Central cell (iv) Egg cell (v) Polar nuclei (vi) Antipodals (b) Write the fate of egg cell and polar nuclei after fertilization.

Draw a diagram of sectional view of human ovary and label (i) Primary follicle, (ii) Tertiary follicle, (iii) Graafian follicle and (iv) Corpus luteum.

(a) Draw a diagram of the structure of a human ovum surrounded by corona radiata. Label the following parts : (i) Ovum, (ii) Plasma Membrane, (iii) Zona Pellucida (b) State the function of Zona Pellucida.

(a) Draw a labelled diagram of excretory system in human beings and label the following: (i) left kidney, (ii) renal artery, (iii) urinary bladder, (iv) urethra (b) Name the functional unit of kidney. (c) Name two nitrogenous wastes released from kidney.

Draw the shape o hyperbola (x^(2))/(49) - (y^(2))/(9) = 1 and find the following : (i) Centre, (ii) Transverse axis, (iii) conjugate axis, (iv) vetices, (v) eccentricity, (vi) foci, (vii) Directrices.

In a quadrilateral, define each of the following: (i) Sides (ii) Vertices (iii) Angles (iv) Diagonals (v) Adjacent angles (vi) Opposite Sides (vii)Opposite sides (viii) Opposite angles (ix) Interior (x)Exterior

Draw a diagram of the human eye as seen in a vertical section and label the parts which suits the following descriptions relating to the : Photosensitive layer of the eye.

Draw a diagram of the human eye as seen in a vertical section and label the parts which suits the following functions/descriptions : The region of distinct vision.