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BlackZzzverrR [31]
3 years ago
15

A person who is physically fit is able to produce more energy because he/she is more efficient in obtaining and delivering _____

__ to the muscles
Health
1 answer:
sleet_krkn [62]3 years ago
3 0

Explanation:

o2 to muscle tissue..without this muscles produce lactic acid that relies on fat cells 4 energy...

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Thus the larger the surface area exposed the more molecules pass through into the membrane , the higher the concentration differences the greater the number of molecules willing to break free and escape; but the thicker the separating membranes, the slower the number of molecules getting chances to pass through and the lower the rate of diffusion.

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