Question
Lysosomes are also celled digestive bags. Why?
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$_8\text{C}^{16},_6\text{C}^{14},_7\text{N}^{14},_8\text{O}^{18},_7\text{N}^{16}$
A stone and the earth attract each other with an equal and opposite force. Why then we see only the stone falling towards the earth but not the earth rising towards the stone?