Respuesta :
The effect of muscle size on metabolic rate can be controlled.
What do you mean by muscle size?
- "Larger muscle fibers generally produce more force than smaller muscle fibers."
What do you mean by metabolic rate?
- "The rate at which metabolism occurs in a living organism is called metabolic rate."
- Metabolism is a process by which chemical reactions/conversion of energy occurs in our body.
- The more muscle in our body and less fat, the higher is the metabolic rate.
- It is not in our hand to control our gender and age, but the muscle size can be controlled.
Hence, the answer is B. muscle size.
To know more about metabolic rate here
https://brainly.com/question/19664757
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