The kidneys and sweat glands both work to prevent excesses of either uric acid or urine in the body. either water or salt in the body. either carbon dioxide or oxygen in the body. either feces or ph levels in the body.

Ans.

Kidneys and skin are two major organs of excretory system that help in elimination of waste substances from the body. Both the organs work to prevent excesses of salt and water in the body.

Kidneys make urine by filtering the blood and remove excess of fluid (water), some ions, salts and nitrogenous wastes. The skin consists sweat glands that secrete water as sweat, salts, urea onto the body.

Thus, the correct answer is option). 'either water or salt in the body.'

the food storage products of chrysophytes are oils or the polysaccharide laminarin.   formerly classified as plants, the chrysophytes contain the photosynthetic pigments chlorophyll a and c all but the yellow-green algae also contain the carotenoid pigment fucoxanthin.