Select the animals having an open type of circulatory system:
$(i)$ $Ascidia$
$(ii)$ $Cockroach$
$(iii)$ $Earthworm$
$(iv)$ $Prawn$
$(v)$ $Silver$ $fish$
$(vi)$ $Snail$
$(vii)$ $Squid$

Match the following columns and select the correct option.

Column-$I$	Column-$II$
$(a)$ Coelenterata	$(i)$ Parapodia
$(b)$ Arthropoda	$(ii)$ Radula
$(c)$ Annelida	$(iii)$ Malpighian tubules
$(d)$ Mollusca	$(iv)$ Cnidoblasts

Animals exhibiting radial symmetry are found in:

Read the following statements and find out the correct statement.
$a$. Urinary bladder is absent in fishes
$b$. Gambusia fish eradicates mosquito larva
$c$. Ampulla of Lorenzini present in dogfish act as thermoreceptors
$d$. Electric organs are modified muscles

Identify the type of digestive system in the organisms shown below.

Select the incorrect statements from the following:
$A$. Digestive system in Platyhelminthes is incomplete.
$B$. Bilateral symmetry is a characteristic feature of adult Echinoderms.
$C$. Pseudocoelom is possessed by Aschelminthes.
$D$. Notochord is persistent throughout life in the class Chondrichthyes.
$E$. Members of class Reptilia maintain a constant body temperature.