A plasmid.
yes. they lay little eggs called nits in your hair.
Close - they're called concentric circles.
concentric circles
Concentric circles.
They are congruent circles
The body that circles the Earth is called the Moon.
Concentric circles are circles with the same common centre.
Yes. The circles can be of different size. These are called concentric circles.
concentric circles
Concentric circles
Congruent circles
Concentric circles.