Read the following statements about cockroach.
(I) Head is triangular in shape and lies anteriorly at right angles to the longitudinal axis.
(II) Head is formed by fusion of nine segments and has restricted mobility.
(III) The entire midgut of cockroach is lined by cuticle.
(IV) Antennae of cockroach has sensory receptors for monitoring the environment.
(V) Mushroom glands are present in 
abdominal segment in male cockroach.
Which of the above statements are correct?
Text Solution
Verified by ExpertsD
• The head of cockroach is triangular and bent downward at right angles to the body axis.
• The cockroach head capsule is formed by fusion of six embryonic segments (not nine).
• Entire foregut of cockroach is lined by cuticle.
• Antennae of cockroach has sensory receptors (olfactory, tactile) for monitoring the environment.
• Mushroom glands are present in 
- 
abdominal segments in male cockroach. They secrete seminal fluid and nourish sperms.
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