Chương 331: I Saw You

"The human lifespan has its limits. Everyone dies of old age or diseases eventually. This is a part of natural law that humans cannot escape from, but does anyone know why humans experience this phenomenon of aging and dying of diseases?"

On the podium, the youthful-looking Professor Wang Xi spoke persuasively, his voice echoing in the empty large classroom.

Below the stage, Chen Chen suddenly jolted back to his senses. He realized that he may have accidentally dozed off.

It was an extremely long nap that seemed to have lasted ages.

Only, he could no longer recall the dream he had during the nap.

"As we all know, the measuring unit in life is a cell. All of us here are the product of the fission of a tiny zygote. This effect splits it into two, then four, then eight…"