The advantage of having many nuclei in a skeletal muscle fiber is
A) The ability to contract.
B) The ability to produce more ATP with little oxygen.
C) The ability to repair the fiber after an injury.
D) The ability to produce large amounts of the enzymes and structural proteins needed for contraction.
E) both B and C
D) The ability to produce large amounts of the enzymes and structural proteins needed for contraction.
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The innermost sensory layer of the eye that contains bipolar cells and ganglion cells is the ________.
A) choroid B) retina C) sclera D) cornea
A person who is sweating and experiencing muscle tremors, tachycardia, and insomnia should seek medical care for which potential health problem?
A. Hyperthyroidism B. Hypothyroidism C. Addison's disease D. Cushing's syndrome
Thymine is replaced by which nitrogen base in RNA?
A) ribose B) uracil C) guanine D) thymine is not replaced in RNA E) cytosine
What structure is the outermost, dense covering around bone?
A) Endosteum B) Epiphysis C) Spongy bone D) Periosteum