Question

Which part of cockroach has both endoskeleton and exoskeleton

• A. In head region
• B. Thoracic region
• C. Abdominal region
• D. In all regions

Answer 1

Answer: (A)

In head region

• The head of a cockroach is a flattened and pear-shaped structure placed anteriorly at right angles to the long axis of the body.
• The exoskeleton of the head is formed by a number of sclerites.
• The cuticle in cockroach enters into the coelom and forms the endoskeleton and this endoskeleton in the head is known as tentorium.
• So, the head region has both completely developed endoskeleton and exoskeleton.
  
  Therefore, the correct answer is option A.