A. Cardiac output
B. Pulse
C. None of these
D. Stroke volume
🧠 Explanation:
Stroke volume is the blood pumped per heartbeat, vital for circulation. For biology students, this highlights human physiology, making it a key topic for studying cardiology, anatomy, and medical science. It measures heart efficiency. Understanding this clarifies cardiovascular functions. It’s essential for analyzing biology, medicine, and health sciences. Studying stroke volume offers insights into how hearts pump blood, crucial for biology, medical studies, and physiology.