________ in lymphatic vessels and trunks prevent the back flow of lymph.
A. Valves
B. Decreased pressure
C. Increased pressure
D. Osmotic pressure
Answer: A
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Indicate whether this statement is true or false.
The pulse rate depends on all of the following except one. Select the one answer the does not affect a pulse rate reading
A) activity B) the vessel selected to palpate C) emotions D) postural changes
In order for the bicep muscle to shorten, the force applied by the muscle must be ________ the load applied at the hand.
A) equal to B) less than C) greater than
In epigenetic inheritance ________.
both homologous chromosomes are inactivated one set of the homologous chromosomes is silenced one allele of a homologous pair is expressed None of the choices are correct.