Which of the following is not a method that maintains lymph flow?
A) skeletal muscle contraction
B) breathing
C) valves in lymph vessel walls
D) smooth muscle contraction
D) smooth muscle contraction
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A 19-year-old model for Glamour magazine tripped over an extension cord, causing injury to her epidermis. She is afraid the injury will leave a scar. Based on your knowledge of regeneration, what would you say to this patient?
What will be an ideal response?
Testosterone has a stronger effect on epiphyseal plates than estrogens.
Answer the following statement true (T) or false (F)
In the simplest reflex arc,
A) a sensory neuron contacts few interneurons before synapsing on a motor neuron. B) transmission of the impulse from one cell in the arc to another is electrical. C) the sensory neuron synapses directly with on a motor neuron. D) the response is produced by a polysynaptic chain of at least ten neurons. E) None of the answers are correct.
Most of the DNA in the human genome encodes protein.
Answer the following statement true (T) or false (F)