Actinomorphic vs. Zygomorphic — What's the Difference?

Capable of being divided into equal halves along any diameter, as the flowers of a rose or tulip; radially symmetrical.

Having bilateral symmetry, as the flowers of a pea plant.

Having its petals arranged in a radially symmetric fashion.

(biology) having bilateral symmetry

Capable of division into symmetrical halves by any longitudinal plane passing through the axis

Symmetrical bilaterally; - said of organisms, or parts of organisms, capable of division into two symmetrical halves only in a single plane.

Capable of division into symmetrical halves by only one longitudinal plane passing through the axis