Mollusca is differentiated from other by
A. Bilateral symmetry and external skeleton.
B. Mantle and gill.
C. Shell and non-segmented body.
D. Mantle and non-segmented body.
Answer:D
Mollusca is differentiated from other by
A. Bilateral symmetry and external skeleton. B. Mantle and gill. C. Shell and non-segmented body. D. Mantle and non-segmented body.