Scientists study salamanders and their ability to regenerate lost legs and tails. what additional information is essential for scientists to understand in order to apply this ability to humans who have lost limbs?

The ability to regenerate lost legs and tails in salamanders is due to their stem cells. Scientists need to understand the difference between stem cells in salamanders and humans in order to apply it.

the truman doctrine was an american foreign policy whose stated purpose was to counter soviet geopolitical expansion during the cold war. it was announced to congress by president harry s. truman on march 12, 1947, and further developed on july 12, 1948, when he pledged to contain threats to greece and turkey.