Some of these are not examples of homeostasis: (circle those that are not)
Production of concentrated or dilute urine to maintain the concentration of water and salts in the blood within a narrow range

Name the hormone secreted by adrenal cortex which controls water and salt concentration in urine,

Some organisms are able to maintain homeostasis by physiological (sometimes behavioural also) means which ensure constant body temperature, constant osmotic concentration, etc., are called

Fill in the blanks : (i) Annelids have......and insects have........for excretion. (ii) Organisms that show changes in the concentration of body fluids according to the concentration of surrounding medium are called......and those which maintain an internal osmolarity different from the surrounding medium in which they live are called...... . (iii) Sharks and coelacanths reduce the osmoregulatory challenges by retaining..........and.........respectively in their body fluids making them slightly hypertonic to sea water. (iv) In earthworm, depending upon their position, septal nephridia are........and pharyngeal nephridia are.......... . (v) Blood enters the glomerulus via..........arteriole acid leaves via....arteriole.