Of genetic, environmental, and physiological factors, the most significant factor in determining skin color is ________.
What will be an ideal response?
genetics
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Impulses from taste receptors can travel in the facial, glossopharyngeal, and vagus nerves.
Answer the following statement true (T) or false (F)
Which mature cell has no nucleus, no mitochondria and no ribosomes?
A) erythrocyte B) leukocyte C) platelet D) thrombocyte E) neutrophil
When voltage -gated Na+ channels of a resting neuron open,
A) the neuron depolarizes. B) Na+ enters the neuron. C) Na+ enters the neuron and the neuron depolarizes. D) Na+ leaves the neuron. E) Na+ leaves the neuron and the neuron depolarizes.
Following a radical mastectomy, a plastic surgeon uses a pedicled myocutaneous flap of the suprapubic portion of the rectus abdominis muscle to reconstruct the breast. What artery, supplying blood to the myocutaneous flap, needs to be iso- lated, transected, and later grafted to the reconstruction site?
(A) Superficial epigastric artery (B) Superior epigastric artery (C) Inferior epigastric artery (D) Inferior mesenteric artery (E) Musculophrenic artery