$A$ list of animals is given below. Identify the animals with an open circulatory system and choose the correct answer.
$(A)$ Ascidia $(B)$ Cockroach
$(C)$ Earthworm $(D)$ Prawn
$(E)$ Silverfish $(F)$ Snail
$(G)$ Squid

  • A
    $B, D, F$
  • B
    $A, B, D, F$
  • C
    $C, D, E, G$
  • D
    $B, D, E, F$

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Similar Questions

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:

Identify the mismatched pair regarding the endoskeleton of animals.

In which one of the following is the genus name,its two characters,and its class/phylum correctly matched?
Genus Name Two Characters $\&$ Class/Phylum
$A$. $Ascaris$ $(i)$ Body segmented,$(ii)$ Males and females distinct; Phylum: $Annelida$
$B$. $Salamandra$ $(i)$ $A$ tympanum represents ear,$(ii)$ Fertilization is external; Class: $Amphibia$
$C$. $Pteropus$ $(i)$ Skin possesses hair,$(ii)$ Oviparous; Class: $Mammalia$
$D$. $Aurelia$ $(i)$ Cnidoblasts present,$(ii)$ Organ level of organization; Phylum: $Coelenterata$

Cleidoic eggs are a characteristic feature of which of the following?

In contrast to Annelids,the Platyhelminthes show

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