Phylum Mollusca: Class Bivalvia
Second-largest class of phylum Mollusca is:
bivalvia
gastropoda
cephalopoda
Annelida
bivalvia
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Labial palp on either side of mouth secrete mucus that entangles the:A. water
B. prey
C. suspended foot
D. air
Two concave half of shells in class Bivalvia are called:
A. valve
B. spine
C. sheet
D. sheath
Suprabranchial chamber of mantle cavity is meant for the:
A. water exit
B. waste exit
C. respiration
D. digestion
Veliger stage of larva in class Bivalvia is known as:
A. Muller’s larva
B. planula larva
C. trochophore
D. glochidium
Umbo is oldest part of the:
A. shell
B. body mass
C. foot
D. valve
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