Sure:
a cancer cell could kill,
a bacterial cell MIGHT cause disease (you've got good defenses, but sometimes they fail),
an alien (somebody else's cells) cell can invoke an allergic reaction.
Talking on your cell phone while driving is not dangerous.
A human cell is a type of cell that is in humans.
The human.
No, it is not dangerous to use a cell phone while it is recharging.
A human cell is one cell.
The egg is the largest human cell.
brain cell
I am not sure the question you are to ask, but there are many things that are hazardous and dangerous to human health.
Nerve cell is the longest cell in human body.
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The human skin cell has a nucleus, therefore the human skin cell would be eukaryotic.
the egg cell is spunk