Which one of the following is the true descri | vedclass

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(B) The correct option is $(B)$.In a cockroach,there are $10$ pairs of spiracles present for respiration.Two pairs are located on the thorax: the firs

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Cockroach - $10$ pairs of spiracles ($2$ pairs on thorax and $8$ pairs on abdomen)

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(B) The correct option is $(B)$.In a cockroach,there are $10$ pairs of spiracles present for respiration.Two pairs are located on the thorax: the first pair (mesothoracic) lies between the pro- and mesothorax,and the second pair (metathoracic) lies between the meso- and metathorax.The remaining $8$ pairs are located on the abdomen.Option $(A)$ is incorrect because in a rat,the right kidney is usually slightly higher or at the same level as the left due to the position of the liver.Option $(C)$ is incorrect because the earthworm's alimentary canal sequence is pharynx,oesophagus,gizzard,stomach,and intestine.Option $(D)$ is incorrect because the frog's body is divisible into only two regions: head and trunk (neck is absent).

Column-$I$	Column-$II$
$P$. Seventh sternum	$I$. Boat-shaped
$Q$. Eighth and ninth sterna	$II$. Anal styles
$R$. $10$th segment	$III$. Genital pouch

Which one of the following is the true description about an animal concerned?

Similar Questions

Match the following columns regarding the anatomy of a cockroach:

Column-$I$ Column-$II$

$P$. Seventh sternum $I$. Boat-shaped

$Q$. Eighth and ninth sterna $II$. Anal styles

$R$. $10$th segment $III$. Genital pouch

Which of the following is absent in the mouthparts of a housefly?

Which of the following structures originates from the ectoderm?

Draw a labelled diagram of the alimentary canal of a cockroach.

How many ovarioles are found in each ovary of a cockroach?

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