S-shaped growthcurve is shown in the diagram (i) Label 1 to 5 (ii) Write short notes on 1 and 2.

Write a short note on Down’s syndrome.

Label (1) in A and Write down its function.

The shape of a garden is rectangular in the middle and semi-circular at the ends as shown in the diagram. Find the area and the perimeter of this garden. (length of rectangle is 20 - (3.5 + 3.5 meter).

(i) Discuss the anomalous behaviour of nitrogen. (ii) Give the preparation and structure of XeF_(4) . (iii) Write short note on 'Liquation'. (iv) Why is Helium used in diving apparatus ?

Label 1 and 2 in the figure given below:

S_1 and S_2 are two parallel concentric spheres enclosing charges Q and 2Q respectively as shown in the figure. what is the ratio of the electric flux through S_1 and S_2 ?

ADDITIONAL QUESTIONS : The diagram represents a flower. Label the parts and answer the following : (a) Give the letter of the structure which : (i) becomes the fruit wall, (ii) becomes the testa (seed coat), (iii) produces pollen grains. (b) Explain two ways, shown in the diagram, in which this flower is adapted for insect pollination.

Write the following in the form x + iy : (-5i)(1/8i) .