Increased strength of a trained muscle is due to
A. an increased number of muscle fibers.
B. the nervous system's ability to recruit a large number of motor units simultaneously.
C. elimination of unnecessary enzymes and metabolic pathways.
D. elimination of all fat deposits.
E. elimination of unnecessary connective tissue.
B
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Glucose is not considered an essential nutrient because it is not essential for good health.
Answer the following statement true (T) or false (F)
Brain activity is decreased during sleep. In fact, the brainstem typically shows no activity at all
Indicate whether this statement is true or false.
Neurulation is the development of the nervous system from the
A. endoderm. B. mesoderm. C. ectoderm. D. hypoderm.
Which molecule is activated from the binding of an odorant to transmembranous receptor molecules on olfactory hairs?
A. G protein B. cAMP C. Troponin D. Calmodulin