No, amino acids are not alive.
Answer:
An abundance of food.........
Cryosphere, all Ice on earth, the gases melt the ice. Hydrosphere, once ice melts it turns into water. biosphere, lack of ice mean lack of habitat for some animal, penguins, polar bears etc.
B cells mature in the bone marrow or in the lymph node. Hope I could help!
The cells won't recognize the foreign particle <span />
