EVERYDAY SCIENCE

Detailed explanation-1: -The reptiles have metanephric kidneys. This means that they have well-developed glomerulus in their kidneys.

Detailed explanation-2: -Reptiles, birds, and mammals all have a metanephric kidney. The glomeruli are well developed in this type of kidney. The excretory process is aided by the metanephric kidneys. These are paired structures found in the abdominal region.

Detailed explanation-3: -In reptiles, there are two pairs of kidneys at birth: the mesonephros and the metanephros. The metanephric kidney in reptiles, as in all amniote vertebrates, is retained as the functional kidney in adults.

Detailed explanation-4: -The mammalian metanephric kidney is a highly complex organ that filters waste products from the circulation, maintains electrolyte and pH balance of body fluid, bone mineralization, blood pressure and blood composition. Many of these actions are carried out by the nephron: the repeated, functional unit of the kidney.

Detailed explanation-5: -The mammalian kidney, the metanephros, is a mesodermal organ classically regarded as arising from the intermediate mesoderm (IM). Indeed, both the ureteric bud (UB), which gives rise to the ureter and the collecting ducts, and the metanephric mesenchyme (MM), which forms the rest of the kidney, derive from the IM.