Which among the following is not correct about organ systems in mollusks?
A. Pair of main nerve cords extends throughout their body
B. Mollusks respire either through gills or mantle cavity
C. Excretion occurs through malpighian tubules
D. They have an open type of circulatory system
Answer:C
Which among the following is not correct about organ systems in mollusks?
A. Pair of main nerve cords extends throughout their body B. Mollusks respire either through gills or mantle cavity C. Excretion occurs through malpighian tubules D. They have an open type of circulatory system