Hannah?
No. Most have radial symmetry. No. Most have radial symmetry.
Symmetry can exist naturally, or it can me made artificially, but no person invented the concept of symmetry.
line of symmetry
Radial symmetry
most porifera do not have any symmetry
not all penguins have symmetry but it is most likely that they will.
A Line of Symmetry.
Another name for reflection symmetry is mirror symmetry.
It is most often called a cube but not all square prisms are cubes. It has its name because it has cubical symmetry.
most of them don't.
parallegram
Rotational symmetry.