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Byju's Answer
Standard IX
Biology
Pisces
In which of t...
Question
In which of the following notochord is replaced by bony vertebral column in adult?
A
A
s
c
i
d
i
a
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B
B
r
a
n
c
h
i
o
s
t
o
m
a
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C
P
e
t
r
o
m
y
z
o
n
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D
L
a
b
e
o
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Solution
The correct option is
D
L
a
b
e
o
Presence of notochord is a characteristic feature of all chordates.
The members of sub-phylum Vertebrata possess notochord
during the embryonic stage.
In vertebrata adult form the notochord is replaced
by a cartilaginous or bony vertebral column.
While in members of other Sub-phyla of Chordata the notochord r
emain as such.
Hence, the correct answer here is option D as
L
a
b
e
o
belongs to vertebrata.
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