Statement I: Sponges have a cellular level of organization, with water entering the body through ostia and exiting through the os…

Zoology & Animal Kingdom ·Previously asked in JKSSB Veterinary Pharmacist 2025

View the full solved paper: JKSSB Veterinary Pharmacist – 2 March 2025

Question

Statement I: Sponges have a cellular level of organization, with water entering the body through ostia and exiting through the osculum.

Statement II: Sponges exhibit extracellular digestion.

  1. A. Statement I is correct; Statement II is correct
  2. B. Statement I is incorrect; Statement II is incorrect
  3. C. Statement I is correct; Statement II is incorrect (Correct answer)
  4. D. Statement I is incorrect; Statement II is correct

Correct Answer

Option C — Statement I is correct; Statement II is incorrect

Detailed Solution & Explanation

The correct answer is Statement I is correct; Statement II is incorrect.

Key Points

  • Statement I is correct - sponges are cellular-level organisms, water enters through ostia (pores) and exits through osculum.
  • Statement II is incorrect - sponges exhibit INTRACELLULAR digestion (food is engulfed by choanocytes and digested inside cells).

Topics covered: Porifera Digestion