The avian
kidneys are divided into units called lobules and as the two avian kidneys of
birds do their work or function, most of these birds excrete nitrogenous waste
known as uric acid from the blood, which reduces water loss but requires more
metabolic energy to produce nitrogenous waste.
Growth is a characteristic <span>of all living things and involves an increase in the amount of living material in an organism</span>
C. the cell membrane.
the membrane let's things in and out of the cell.
