Phylum Mollusca: Class Polyplacophora
In Polyplacophora, process of fertilization is:
internal
external
vary
all of above
external
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A linear series of gills are present in polyplachophorans on either side of the:A. foot
B. shells
C. body
D. visceral organs
Chitons are tough to chew and hard to collect with a
A. fishy flavor
B. salty flavor
C. sour flavor
D. sweet flavor
Which food most of chitons depend on?
A. algae
B. calcium
C. salts
D. mineral deposits
A ladder-like nervous system is known as:
A. neurons
B. impulses
C. nerve cords
D. radula
Most common member of class Polyplacophora is:
A. octopus
B. cuttle fish
C. chitons
D. snails
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