Which of the following characteristics indicates that mollusks are more closely related to arthropods than to chordates?
A) Presence of a skeleton
B) Type of respiratory structure
C) Pattern of coelom formation
D) Segmentation
E) Symmetry
Answer: B
Which of the following characteristics indicates that mollusks are more closely related to arthropods than to chordates?
A) Presence of a skeleton
B) Type of respiratory structure
C) Pattern of coelom formation
D) Segmentation
E) Symmetry