Zoology MCQs
Prepare for NEET, CSS, UPSC, FPSC, PPSC, and NTS exams with Zoology MCQs covering animal physiology, genetics, taxonomy, and ecology. Strengthen biology knowledge and boost exam performance with detailed answers.
Q: Type of circulatory system in insects
A) Open
B) Closed
C) Both
D) None
✅ Correct Answer: A
Explanation: Insects have an open circulatory system.
Q: Function of the notochord
A) Digestive aid
B) Support and structure
C) Reproduction
D) Respiration
✅ Correct Answer: B
Explanation: The notochord provides support in chordates.
Q: Heart chambers in mammals
A) Two
B) Three
C) Four
D) One
✅ Correct Answer: C
Explanation: Mammals have four-chambered hearts.
Q: Main gas exchanged in respiration
A) Nitrogen
B) Carbon dioxide
C) Oxygen
D) Hydrogen
✅ Correct Answer: C
Explanation: Oxygen is taken in and carbon dioxide expelled.
Q: Skeleton type in echinoderms
A) Endoskeleton
B) Exoskeleton
C) Hydrostatic
D) None
✅ Correct Answer: A
Explanation: Echinoderms possess an internal skeleton.