Question

which of the following worms have bilateral symmetry? a. platyhelminthes b. aschelminthes c. annelida d. all of the above

Explanation:

• Platyhelminthes (Flatworms): Have bilateral symmetry. Their body can be divided into two equal halves along a single plane.
• Aschelminthes (Roundworms): Exhibit bilateral symmetry.
• Annelida (Segmented worms like Earthworms): Also have bilateral symmetry.

Since all the given worm groups (Platyhelminthes, Aschelminthes, Annelida) possess bilateral symmetry.

Answer:

D. all of the above