Photoplethysmography is used to track of heart rate during a workout
The answer is A
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Answer:
Illusory conjunctions are psychological effects in which participants combine features of two objects into one object. ... Visual illusory conjunctions are thought to occur due to a lack of visual spatial attention, which depends on fixation and (amongst other things) the amount of time allotted to focus on an object.
The answer is Proteins, its part of the 6 essential nutrients your body needs
