True of False? Most mammals lose one set of teeth during their life time.?

Sort of true, but not completely. As is common with placental mammals with such teeth, I replaced* my incisors, canines and premolars. I never replaced the molars (molars, by definition, wouldn't be molars if there was replacement.) Therefore, I didn't lose the complete set at all.





Marsupials are even less keen on replacement. They only replace the final premolar on each jaw half. Apart from that, all their other teeth are of the first generation.





* Replacement in this sense means a second tooth erupting at the same position. It doesn't refer to a trick known as delayed eruption. Some mamals, including elephants and kangaroos, have a delayed eruption so molars can appear to take over the function of already worn molars. However, they erupt at a different location and are also first generation teeth.

Sweating Disorders