The adult stage of a housefly or mosquito is known as:

Select the incorrect statement regarding diploblastic organization.

Some characteristics are given below:
$(1)$ Polymorphism $(2)$ Metagenesis $(3)$ Metamorphosis
$(4)$ Canal system $(5)$ Cnidoblast cells $(6)$ Blind sac body plan
Select the correct statement:

Match List $I$ with List $II$ :

List $I$	List $II$
$A$. Pterophyllum	$I$. Hag fish
$B$. Myxine	$II$. Saw fish
$C$. Pristis	$III$. Angel fish
$D$. Exocoetus	$IV$. Flying fish

Choose the correct answer from the options given below :

Which one of the following groups of animals is bilaterally symmetrical and triploblastic?

All of the following are monoecious,except