Question

What is not a common feature of periplaneta and scorpions?

• A. Excretory organs are malpighian tubules
• B. No appendages in abdomen
• C. Respiratory organs are trachea
• D. Both are mostly terrestrial arthropods

Answer 1

The correct option is C Respiratory organs are trachea

• Spiracles are the small openings present along the edges of the abdomen of Periplaneta, through which respiratory gases are carried to and from tissues via small tubes called tracheae.
• Series of vascular thin plates called a book lungs to serve as a respiratory organ in Scorpion..
• The other features are common to both organisms.
  So, the correct answer is option C.