Multiple choice

When a flower can be divided into two similar halves along only one plane, it is said to be _______.

  1. regular or actinomorphic

  2. zygomorphic

  3. assymetrical or irregular

  4. lateral

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Zygomorphic flowers have bilateral symmetry - they can be divided into two similar halves along only ONE specific vertical plane. Examples: orchid, pea, snapdragon. Actinomorphic flowers can be divided along any plane. Asymmetrical flowers lack symmetry.