First and foremost, the first one I would check off is letter B.
The only other option I would choose is E.
A mistake could be the fact that exercise over time lowers your resting HR. so even though for the period of time that you are exercising your heart is beating more, the rest of the time your heart will be beating less, therefore "using less of your heart beats"
Answer:
False
Explanation:
The amount of saliva secreted in 24 hours usually amounts to 1–1.5 litres.
Answer:
From sensory receptors to the central nervous system
Explanation:
