I believe it's the cardiovascular system and the respiratory system.
All of them
The left subclavian artery doesn't feed the carotid (neck pulse) so your answer would be the wrist.
Suppose you wanted to find out how your pulse rate was affected by climbing a flight of stairs. Compose a possible hypothesis. Would your research rely on quantitative or qualitative data?
The Circulatory, Lyphatic, Integumentary, Muscular, and Nervous Systems.
the circulatory system
A large EM Pulse would disable navigation and most control systems on aircraft such as A 380.
Directly, your skeletal system is affected since the Anterior Cruciate Ligament (ACL), being a ligament, connects the Femur to the Tibia. Indirectly, the affected systems would be: muscular, nervous, and integumentary systems.
your judgment would be affected first.
the muscle, tissue, and possibly the bone
It is advisable to rely on quantitative data.
The rate of photosynthesis would be slowed down by increasing the thickness of a leaf. Leaves that are broad and thin offer the best conditions for the process.
Physical exertion results in an increased pulse rate to compensate for the increased carbon dioxide that needs to be removed from the body and increased requirement of oxygen and energy (in the form of sugars) to the muscles. These are transported by the blood, so increasing the amount of blood pumped to the muscles (and in turn back to the lungs to get rid of the carbon dioxide) is done by increasing the heart rate.