In crustaceans,respiration takes place by

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Question

(A) Crustaceans are a large group of arthropods,primarily aquatic,which include animals like crabs,lobsters,and prawns.In these aquatic arthropods,res

Vedclass · Accepted Answer

Gills

Vedclass · Answer

(A) Crustaceans are a large group of arthropods,primarily aquatic,which include animals like crabs,lobsters,and prawns.In these aquatic arthropods,respiration occurs through specialized respiratory organs known as gills.$A$ is the correct option because gills are the primary respiratory structures in crustaceans.$B$ (Book lungs) are found in arachnids like spiders and scorpions.$C$ (Ctenidia) are respiratory organs found in mollusks.$D$ (Trachea) is the respiratory system found in insects.

Column $I$ (Animals)	Column $II$ (Respiratory organs)
$i$. Sponges	$a$. External gills
$ii$. Insects	$b$. Plasma membrane
$iii$. Limulus	$c$. Tracheae
$iv$. Amphibian tadpoles	$d$. Book gills

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Which of the following respiratory organs are present in spiders and scorpions?

Match the Column $I$ with Column $II$ and select the correct option:
Column $I$ (Animals) Column $II$ (Respiratory organs)
$i$. Sponges $a$. External gills
$ii$. Insects $b$. Plasma membrane
$iii$. Limulus $c$. Tracheae
$iv$. Amphibian tadpoles $d$. Book gills

Which of the following respires by gills?

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