Question

Which of the following animals carry out both intra and extracellular digestion?

• A. Cnidarians
• B. Flat worms
• C. Protochordates
• D. All of the above

Answer 1

Answer: (D)

All of the above

• Extracellular digestion takes place outside the cell while Intracellular digestion takes place inside the cell.
• Urochordate and cephalochordates are collectively known as proto-chordates. They digest their food both inside and outside their cells.
• Cnidarian and flatworms have an incomplete digestive system which helps in extracellular digestion apart from intracellular digestion they can perform without any help from the digestive system.
• So, the correct answer is 'All of the above'.