The testes of a human male produce gametes. The process that produces these gametes differs from the process that produces new skin cells in the same individual.

In my own word cell technology can  lead to advances in the understanding of diseases mechanism and transmission because diseases is very bad

When the ball is rising up, it gains kinetic energy. when the ball reaches the very top, it will have all potential energy, until it falls back down and gains it kinetic energy. finally when you catch the ball or it falls back down, it would have gained its potential energy back.

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