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Q.

Choose the correct statements regarding the diagram mentioned below

Question Image

a) Excretory organ is proboscis gland.
b) Notochord is present in the collar region.
c) Respiration takes place through gills.
d) Fertilisation is internal.
e) Circulatory system is closed type.

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a

a, b, c only

b

a, b, e only

c

a, c only

d

b, d, e only

answer is C.

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Detailed Solution

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In Balanoglossus, stomochord is present in the collar region. It has open circulatory system. Fertilisation is external.

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