two like a normal human being
Complex filtering organs in the back of the body are kidneys.
vertebrates
Kidneys
All vertebrate animals have kidneys. Although we have never found dinosaur kidney fossils (soft tissue rarely is preserved), dinosaurs were vertebrates, so they definitely had kidneys. More proof is that birds, their descendants, have kidneys.
Complex filtering organs in the back of the body are kidneys.
Only mammalian kidneys have a renal pelvis (dilated beginning of the ureter) and renal pyramids (8 to 18 cone-shaped tissues in the renal medulla). The renal medulla (the innermost part of the kidney), and the renal cortex (surrounds the renal medulla) are more distinguishable in mammals than in other vertebrates.
There are 2 kidneys in a frog's body.
No. Many vertebrates have no teeth, at all.
Evolution of the Vertebrates has 576 pages.
Kidneys excrete nitrogenous waste (urine) and also regulate the water balance in vertebrates. Rat is a vertebrate, too.
165 vertebrates are there in the national zoo
All species of birds are vertebrates. Birds, mammals, fish, reptiles and amphibians are all classed as vertebrates.