Answer:
True
Explanation:
I'm assuming this is a true or false question? Physical activity refers to any expenditure of energy that gets your heart rate up.
No, I looked it up and I believe no
The should check the level of consciousness before performing CPR because if the patient is still conscious, then their heart and breathing has not stopped and doing CPR is not necessary and would hurt the patient instead of helping them.
let me know if you have any further questions
:)
According to the cross-bridge model of muscle contraction, the muscles stiffen after death because ATP cannot bind and directly release the myosin head from the actin filament.
<h3>What is myosin?</h3>
Myosin and actin are two essential proteins in muscle cells that interact during muscle contraction.
Adenosin Triphosphate (ATP) is a key high-energy molecule required during muscle contraction that binds to myosin and whose hydrolysis enables to produce movement.
In conclusion, according to the cross-bridge model of muscle contraction, the muscles stiffen after death because ATP cannot bind and directly release the myosin head from the actin filament.
Learn more about myosin and actin here:
brainly.com/question/23185374
#SPJ1
