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.
on the under side of the leaves, there are brown circles, those are the pollen/seeds.
Yes. The circles can be of different size. These are called concentric circles.
Concentric circles
concentric circles
Congruent circles