Silicosis, T.B., Pneumonia, asbestosis are the dis-eases affecting respiratory system. Name four dis-eases affecting circulatory system.

Match the items in columns B and C with A. OR Features of different phyla/class are given below. Identify the phylum/ class and give examples of each group. a) Body is covered by scales, heart is three or four chambered. b) They are exclusively marine, commonly called sea walnuts and shows bioluminescence. c) Body is divided into proboscis, collar and trunk: They have open circulatory system and presence of proboscis gland.

The important finding in the case sheet of two patients A and B show that both are suffering from dis-orders of the skeletal system. a) Patient A is suffering from inflammation of joints due to the accumulation of uric acid crystals. b) Patients B shows decreased bone mass and decreased level of oestrogen. Identify the disorders or diseases of A and B .

Analyse the system at equlibrium given below. 2CO(g)+O_(2)harr2CO_(2)(g) a) What are the reactants here? b) what will happen to the system when the amount of oxygen is increased? c) How does the increase in presssure affect the forward reaction?