Locomotion and MovementMedium
Question
In both sexes of cockroach, a pair of jointed filamentous structures called anal cerci are present on
Options
A.$8^{\text{th~}}$ and $9^{\text{th~}}$ segment
B.$11^{\text{th~}}$ segment
C.$5^{\text{th~}}$ segment
D.$10^{\text{th~}}$ segment
Solution
Sol. [Key Concept: Anal cerci of cockroach]
In both male and female cockroaches, paired jointed anal cerci are borne on the tenth abdominal segment. The adult abdomen has ten segments in the standard textbook description. Hence, option (4).
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