Question

1.
Answer any two of the following questions :
a)
Discuss echinoderm theory and modern concept of the origin of chordates with
illustration.
9.
b)
Classify class Amphibia up to living orders with distinctive characters and suitable
examples ( including Indian species ).
9
c)
Describe with a labelled diagram the neuromast cell and mention its function. What
do you mean by electroreception ?
6 + 3
Draw and describe the structure of a flagella. Write in brief about the hydrostatic
movement of annelida.
5 4​

Answer 1

Answer:

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Explanation:

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